1
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Zhou L, Feng RR, Zhang W, Gai F. Triple-Bond Vibrations: Emerging Applications in Energy and Biological Sciences. J Phys Chem Lett 2024; 15:187-200. [PMID: 38156972 DOI: 10.1021/acs.jpclett.3c02619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Triple bonds, such as that formed between two carbon atoms (i.e., C≡C) or that formed between one carbon atom and one nitrogen atom (i.e., C≡N), afford unique chemical bonding and hence vibrational characteristics. As such, they are not only frequently used to construct molecules with tailored chemical and/or physical properties but also employed as vibrational probes to provide site-specific chemical and/or physical information at the molecular level. Herein, we offer our perspective on the emerging applications of various triple-bond vibrations in energy and biological sciences with a focus on C≡C and C≡N triple bonds.
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Affiliation(s)
- Liang Zhou
- Department of Physics and Applied Optics Beijing Area Major Laboratory, Beijing Normal University, Beijing 100875, China
| | - Ran-Ran Feng
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Wenkai Zhang
- Department of Physics and Applied Optics Beijing Area Major Laboratory, Beijing Normal University, Beijing 100875, China
| | - Feng Gai
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
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2
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Zhang MM, Chen SL, Huang S, Zheng D, Liang H, Ye B, Chen J, Song X, Liu L, Li J, Chen W, Ji S, Dang L, Li MD. Primary Structural Units "D +A -" Ion Pairs Dominating Near-Infrared Photothermal Conversion of Organic Ionic Cocrystals. J Phys Chem Lett 2024; 15:68-75. [PMID: 38131660 DOI: 10.1021/acs.jpclett.3c03366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
The specific stacking mode of D/A blocks is often considered to largely determine the physicochemical properties of cocrystals. However, this rule may fail when encountering a large degree of (integer or near-integer) charge transfer situations. Herein, we explore the extensive correlations between the possible smallest structural units, stacking modes, and near-infrared photothermal conversion (NIR-PTC) properties of F4TCNQ-based cocrystals with typical features of integer-charge-transfer. Surprisingly, these cocrystals with distinct stacking modes display analogous D-A interactions, broad red-shift absorption, ultrafast (1-3 ps) relaxation dynamics of excited states, and excellent NIR-PTC properties. This supports that the resulting "D+A-" ion pairs from integer-charge-transfer may serve as the primary structural units beneath the secondary stacking modes to dominate the property of cocrystals. The stacking modes play an important but only secondary role. This work provides new insights into the structure-dynamics-property correlations and modular design of organic cocrystals for PTC and other applications.
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Affiliation(s)
- Meng-Meng Zhang
- College of Chemistry and Chemical Engineering, and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou 515063, China
| | - Shun-Li Chen
- College of Chemistry and Chemical Engineering, and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou 515063, China
| | - Siya Huang
- College of Chemistry and Chemical Engineering, and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou 515063, China
| | - Dexin Zheng
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710019, China
| | - Hui Liang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Bowei Ye
- College of Chemistry and Chemical Engineering, and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou 515063, China
| | - Jiecheng Chen
- College of Chemistry and Chemical Engineering, and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou 515063, China
| | - Xinluo Song
- College of Chemistry and Chemical Engineering, and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou 515063, China
| | - Lishan Liu
- College of Chemistry and Chemical Engineering, and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou 515063, China
| | - Jiayu Li
- College of Chemistry and Chemical Engineering, and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou 515063, China
| | - Wenbin Chen
- College of Chemistry and Chemical Engineering, and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou 515063, China
| | - Shaomin Ji
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Li Dang
- College of Chemistry and Chemical Engineering, and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou 515063, China
- Chemistry and Chemical Engineering Guangdong Laboratory, Shantou 515031, China
| | - Ming-De Li
- College of Chemistry and Chemical Engineering, and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou 515063, China
- Chemistry and Chemical Engineering Guangdong Laboratory, Shantou 515031, China
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3
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Yang Y, Liu J, Feng RR, Zhang W, Gai F. C≡N Stretching Frequency as a Convenient Reporter of Charge Separation in Molecular Systems. J Phys Chem B 2023; 127:6999-7003. [PMID: 37525395 DOI: 10.1021/acs.jpcb.3c02707] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
Previously, several studies have shown that, for a set of structurally related nitrile compounds, there could be a linear relationship between the total charge on the nitrile group (qCN) and its stretching frequency (νCN). However, it is unclear whether the corresponding frequency and charge properties of structurally different nitrile compounds can be described by a single linear νCN-qCN relationship. Herein, we compute the qCN magnitudes of a large number of nitrile-containing molecules whose νCN values cover a spectral range of ca. 200 cm-1 and are measured under different experimental conditions. Our results reveal that νCN indeed exhibits a linear dependence on qCN, with a slope of 637 ± 30 cm-1/charge. Because the nitrile moiety is a commonly used building block in electronic donor-acceptor (D-A) molecular systems, we believe that this linear relationship will find utility in a wide range of applications where such D-A constructs are used, such as in organic photovoltaic assemblies. In addition, we apply this linear relationship to characterize the degree of charge transfer upon photoexcitation of two indole derivatives, 5-cyanoindole and 6-cyanoindole, and are able to show that in both cases, the fluorescence emission arises from a charge-transfer or La state.
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Affiliation(s)
- Yuyao Yang
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Jingsong Liu
- Department of Physics and Applied Optics Beijing Area Major Laboratory, Beijing Normal University, Beijing 100875, China
| | - Ran-Ran Feng
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Wenkai Zhang
- Department of Physics and Applied Optics Beijing Area Major Laboratory, Beijing Normal University, Beijing 100875, China
| | - Feng Gai
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
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4
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Chen SL, Zhang MM, Chen J, Wen X, Chen W, Li J, Chen YT, Xiao Y, Liu H, Tan Q, Zhu T, Ye B, Yan J, Huang Y, Li J, Ni S, Dang L, Li MD. Mechanochemistry toward Organic "Salt" via Integer-Charge-Transfer Cocrystal Strategy for Rapid, Efficient, and Scalable Near-Infrared Photothermal Conversion. CHEMSUSCHEM 2023; 16:e202300644. [PMID: 37277977 DOI: 10.1002/cssc.202300644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 05/26/2023] [Accepted: 06/05/2023] [Indexed: 06/07/2023]
Abstract
Inspired by the concept of ionic charge-transfer complexes for the Mott insulator, integer-charge-transfer (integer-CT) cocrystals are designed for NIR photo-thermal conversion (PTC). With amino-styryl-pyridinium dyes and F4TCNQ (7,7',8,8'-Tetracyano-2,3,5,6-tetrafluoroquinodimethane) serving as donor/acceptor (D/A) units, integer-CT cocrystals, including amorphous stacking "salt" and segregated stacking "ionic crystal", are synthesized by mechanochemistry and solution method, respectively. Surprisingly, the integer-CT cocrystals are self-assembled only through multiple D-A hydrogen bonds (C-H⋅⋅⋅X (X=N, F)). Strong charge-transfer interactions in cocrystals contribute to the strong light-harvesting ability at 200-1500 nm. Under 808 nm laser illumination, both the "salt" and "ionic crystal" display excellent PTC efficiency beneficial from ultrafast (∼2 ps) nonradiative decay of excited states. Thus integer-CT cocrystals are potential candidates for rapid, efficient, and scalable PTC platforms. Especially amorphous "salt" with good photo/thermal stability is highly desirable in practical large-scale solar-harvesting/conversion applications in water environment. This work verifies the validity of the integer-CT cocrystal strategy, and charts a promising path to synthesize amorphous PTC materials by mechanochemical method in one-step.
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Affiliation(s)
- Shun-Li Chen
- College of Chemistry and Chemical Engineering, and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, 515063, P. R. China
| | - Meng-Meng Zhang
- College of Chemistry and Chemical Engineering, and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, 515063, P. R. China
| | - Jiecheng Chen
- College of Chemistry and Chemical Engineering, and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, 515063, P. R. China
| | - Xinyi Wen
- College of Chemistry and Chemical Engineering, and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, 515063, P. R. China
| | - Wenbin Chen
- College of Chemistry and Chemical Engineering, and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, 515063, P. R. China
| | - Jiayu Li
- College of Chemistry and Chemical Engineering, and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, 515063, P. R. China
| | - Ye-Tao Chen
- College of Chemistry and Chemical Engineering, and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, 515063, P. R. China
| | - Yonghong Xiao
- College of Chemistry and Chemical Engineering, and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, 515063, P. R. China
| | - Huifen Liu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710127, P. R. China
| | - Qianqian Tan
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710127, P. R. China
| | - Tangjun Zhu
- College of Chemistry and Chemical Engineering, and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, 515063, P. R. China
| | - Bowei Ye
- College of Chemistry and Chemical Engineering, and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, 515063, P. R. China
| | - Jiajun Yan
- College of Chemistry and Chemical Engineering, and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, 515063, P. R. China
| | - Yihang Huang
- College of Chemistry and Chemical Engineering, and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, 515063, P. R. China
| | - Jie Li
- College of Chemistry and Chemical Engineering, and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, 515063, P. R. China
| | - Shaofei Ni
- College of Chemistry and Chemical Engineering, and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, 515063, P. R. China
| | - Li Dang
- College of Chemistry and Chemical Engineering, and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, 515063, P. R. China
- Chemistry and Chemical Engineering Guangdong Laboratory, Shantou, 515031, P. R. China
| | - Ming-De Li
- College of Chemistry and Chemical Engineering, and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, 515063, P. R. China
- Chemistry and Chemical Engineering Guangdong Laboratory, Shantou, 515031, P. R. China
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5
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Control Aggregation of P3HT in Solution for High Efficiency Doping: Ensuring Structural Order and the Distribution of Dopants. CHINESE JOURNAL OF POLYMER SCIENCE 2023. [DOI: 10.1007/s10118-023-2939-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
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6
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Das R, Linseis M, Schupp SM, Gogesch FS, Schmidt-Mende L, Winter RF. Organic binary charge-transfer compounds of 2,2' : 6',2'' : 6'',6-trioxotriphenylamine and a pyrene-annulated azaacene as donors. RSC Adv 2023; 13:3652-3660. [PMID: 36756575 PMCID: PMC9890512 DOI: 10.1039/d2ra07322f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 01/18/2023] [Indexed: 01/31/2023] Open
Abstract
Three binary charge-transfer (CT) compounds resulting from the donor 2,2' : 6',2'' : 6'',6-trioxotriphenylamine (TOTA) and the acceptors F4TCNQ and F4BQ and of a pyrene-annulated azaacene (PAA) with the acceptor F4TCNQ are reported. The identity of these CT compounds are confirmed by single-crystal X-ray diffraction as well as by IR, UV-vis-NIR and EPR spectroscopy. X-ray diffraction analysis reveals a 1 : 1 stoichiometry for TOTA·F4TCNQ, a 2 : 1 donor : acceptor ratio in (TOTA)2·F4BQ, and a rare 4 : 1 stoichiometry in (PAA)4·F4TCNQ, respectively. Metrical parameters of the donor (D) and acceptor (A) constituents as well as IR spectra indicate full CT in TOTA·F4TCNQ, partial CT in (TOTA)2·F4BQ and only a very modest one in (PAA)4·F4TCNQ. Intricate packing motifs are present in the crystal lattice with encaged, π-stacked (F4TCNQ-)2 dimers in TOTA·F4TCNQ or mixed D/A stacks in the other two compounds. Their solid-state UV-vis-NIR spectra feature CT transitions. The CT compounds with F4TCNQ are electrical insulators, while (TOTA)2·F4BQ is weakly conducting.
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Affiliation(s)
- Rajorshi Das
- Fachbereich Chemie, Universität Konstanz Universitätsstrasse 10, 78457 Konstanz Germany
| | - Michael Linseis
- Fachbereich Chemie, Universität Konstanz Universitätsstrasse 10, 78457 Konstanz Germany
| | - Stefan M Schupp
- Fachbereich Physik, Universität Konstanz Universitätsstrasse 10, 78457 Konstanz Germany
| | - Franciska S Gogesch
- Fachbereich Chemie, Universität Konstanz Universitätsstrasse 10, 78457 Konstanz Germany
| | - Lukas Schmidt-Mende
- Fachbereich Physik, Universität Konstanz Universitätsstrasse 10, 78457 Konstanz Germany
| | - Rainer F Winter
- Fachbereich Chemie, Universität Konstanz Universitätsstrasse 10, 78457 Konstanz Germany
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7
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Cocrystal engineering: towards high-performance near-infrared organic phototransistors based on donor-acceptor charge transfer cocrystals. Sci China Chem 2022. [DOI: 10.1007/s11426-022-1450-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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8
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Matsumoto Y, Matsuda R, Yoshimura A, Shirahata T, Misaki Y. Synthesis, Structure and Properties of Donor-Acceptor-Type [4]Dendralenes. CHEM LETT 2022. [DOI: 10.1246/cl.220064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Yuya Matsumoto
- Department of Applied Chemistry, Graduate School of Science and Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
| | - Rina Matsuda
- Department of Applied Chemistry, Graduate School of Science and Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
| | - Aya Yoshimura
- Department of Applied Chemistry, Graduate School of Science and Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
- Research Unit for Power Generation and Storage Materials, Ehime University, Matsuyama, Ehime 790-8577, Japan
| | - Takashi Shirahata
- Department of Applied Chemistry, Graduate School of Science and Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
- Research Unit for Power Generation and Storage Materials, Ehime University, Matsuyama, Ehime 790-8577, Japan
- Research Unit for Development of Organic Superconductors, Ehime University, Matsuyama, Ehime 790-8577, Japan
| | - Yohji Misaki
- Department of Applied Chemistry, Graduate School of Science and Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
- Research Unit for Power Generation and Storage Materials, Ehime University, Matsuyama, Ehime 790-8577, Japan
- Research Unit for Development of Organic Superconductors, Ehime University, Matsuyama, Ehime 790-8577, Japan
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9
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Zhuo MP, Yuan Y, Su Y, Chen S, Chen YT, Feng ZQ, Qu YK, Li MD, Li Y, Hu BW, Wang XD, Liao LS. Segregated Array Tailoring Charge-Transfer Degree of Organic Cocrystal for the Efficient Near-Infrared Emission beyond 760 nm. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2107169. [PMID: 35029001 DOI: 10.1002/adma.202107169] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 12/18/2021] [Indexed: 06/14/2023]
Abstract
Harvesting the narrow bandgap excitons of charge-transfer (CT) complexes for the achievement of near-infrared (NIR) emission has attracted intensive attention for its fundamental importance and practical application. Herein, the triphenylene (TP)-2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4 TCNQ) CT organic complex is designed and fabricated via the supramolecular self-assembly process, which demonstrates the NIR emission with a maximum peak of 770 nm and a photoluminescence quantum yield (PLQY) of 5.4%. The segregated stacking mode of TP-F4 TCNQ CT complex based on the multiple types of intermolecular interaction has a low CT degree of 0.00103 and a small counter pitch angle of 40° between F4 TCNQ and TP molecules, which breaks the forbidden electronic transitions of CT state, resulting in the effective NIR emission. Acting as the promising candidates for the active optical waveguide in the NIR region beyond 760 nm, the self-assembled TP-F4 TCNQ single-crystalline organic microwires display an ultralow optical-loss coefficient of 0.060 dB µm-1 . This work holds considerable insights for the exploration of novel NIR-emissive organic materials via an universal "cocrystal engineering" strategy.
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Affiliation(s)
- Ming-Peng Zhuo
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, China
| | - Yi Yuan
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, China
| | - Yang Su
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, China
| | - Song Chen
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, China
| | - Ye-Tao Chen
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structure Materials of Guangdong Providence, Shantou University, Shantou, 515063, China
| | - Zi-Qi Feng
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, China
| | - Yang-Kun Qu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, China
| | - Ming-De Li
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structure Materials of Guangdong Providence, Shantou University, Shantou, 515063, China
| | - Yang Li
- State Key Laboratory of Precision Spectroscopy, Shanghai Key Laboratory of Magnetic Resonance, Institute of Functional Materials, School of Physics and Materials Science, East China Normal University, Shanghai, 200062, P. R. China
| | - Bing-Wen Hu
- State Key Laboratory of Precision Spectroscopy, Shanghai Key Laboratory of Magnetic Resonance, Institute of Functional Materials, School of Physics and Materials Science, East China Normal University, Shanghai, 200062, P. R. China
| | - Xue-Dong Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, China
| | - Liang-Sheng Liao
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, China
- Macao Institute of Materials Science and Engineering, Macau University of Science and Technology, Taipa, Macau SAR, 999078, China
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10
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Gao J, Guo J, Chen Y, Deng S, Lu Q, Ren Y, Wang X, Fan H, Teng F, He X, Jiang H, Hu P. The competitive role of C–H⋯X (X = F, O) and π–π interactions in contributing to the degree of charge transfer in organic cocrystals: a case study of heteroatom-free donors with p-fluoranil (FA). CrystEngComm 2022. [DOI: 10.1039/d2ce00925k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Four binary organic charge transfer cocrystals were grown by the slow cooling method. The competitive role of C–H⋯X (X = F, O) and π–π interactions in contributing to the degree of charge transfer in the cocrystals was investigated.
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Affiliation(s)
- Jiaoyang Gao
- School of Physics, Northwest University, Xi'an 710069, P.R. China
| | - Jinjia Guo
- School of Physics, Northwest University, Xi'an 710069, P.R. China
| | - Yi Chen
- School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, P.R. China
| | - Shunlan Deng
- School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, P.R. China
| | - Qidong Lu
- School of Physics, Northwest University, Xi'an 710069, P.R. China
| | - Yuxin Ren
- School of Physics, Northwest University, Xi'an 710069, P.R. China
| | - Xiaoming Wang
- School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Haibo Fan
- School of Physics, Northwest University, Xi'an 710069, P.R. China
| | - Feng Teng
- School of Physics, Northwest University, Xi'an 710069, P.R. China
| | - Xuexia He
- School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, P.R. China
| | - Hui Jiang
- School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P.R. China
| | - Peng Hu
- School of Physics, Northwest University, Xi'an 710069, P.R. China
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11
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Kim J, Oh J, Park S, Yoneda T, Osuka A, Lim M, Kim D. Modulations of a Metal-Ligand Interaction and Photophysical Behaviors by Hückel-Möbius Aromatic Switching. J Am Chem Soc 2021; 144:582-589. [PMID: 34967619 DOI: 10.1021/jacs.1c11705] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In organometallic complexes containing π-conjugated macrocyclic chelate ligands, conformational change significantly affects metal-ligand electronic interactions, hence tuning properties of the complexes. In this regard, we investigated the metal-ligand interactions in hexaphyrin mono-Pd(II) complexes Pd[28]M and Pd[26]H, which exhibit a redox-induced switching of Hückel-Möbius aromaticity and subsequent molecular conformation, and their effect on the electronic structure and photophysical behaviors. In Möbius aromatic Pd[28]M, the weak metal-ligand interaction leads to the π electronic structure of the hexaphyrin ligand remaining almost intact, which undergoes efficient intersystem crossing (ISC) assisted by the heavy-atom effect of the Pd metal. In Hückel aromatic Pd[26]H, the significant metal-ligand interaction results in ligand-to-metal charge-transfer (LMCT) in the excited-state dynamics. These contrasting metal-ligand electronic interactions have been revealed by time-resolved electronic and vibrational spectroscopies and time-dependent DFT calculations. This work indicates that the conspicuous modulation of metal-ligand interaction by Hückel-Möbius aromaticity switching is an appealing approach to manipulate molecular properties of metal complexes, further enabling the fine-tuning of metal-ligand interactions and the novel design of functional organometallic materials.
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Affiliation(s)
- Jinseok Kim
- Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry, Yonsei University, Seoul 03722, Korea
| | - Juwon Oh
- Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry, Yonsei University, Seoul 03722, Korea.,Department of Chemistry, Soonchunhyang University, Asan-si, Chungnam 31538, Korea
| | - Seongchul Park
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Korea
| | - Tomoki Yoneda
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Atsuhiro Osuka
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Manho Lim
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Korea
| | - Dongho Kim
- Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry, Yonsei University, Seoul 03722, Korea
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12
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Scaccabarozzi AD, Basu A, Aniés F, Liu J, Zapata-Arteaga O, Warren R, Firdaus Y, Nugraha MI, Lin Y, Campoy-Quiles M, Koch N, Müller C, Tsetseris L, Heeney M, Anthopoulos TD. Doping Approaches for Organic Semiconductors. Chem Rev 2021; 122:4420-4492. [PMID: 34793134 DOI: 10.1021/acs.chemrev.1c00581] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Electronic doping in organic materials has remained an elusive concept for several decades. It drew considerable attention in the early days in the quest for organic materials with high electrical conductivity, paving the way for the pioneering work on pristine organic semiconductors (OSCs) and their eventual use in a plethora of applications. Despite this early trend, however, recent strides in the field of organic electronics have been made hand in hand with the development and use of dopants to the point that are now ubiquitous. Here, we give an overview of all important advances in the area of doping of organic semiconductors and their applications. We first review the relevant literature with particular focus on the physical processes involved, discussing established mechanisms but also newly proposed theories. We then continue with a comprehensive summary of the most widely studied dopants to date, placing particular emphasis on the chemical strategies toward the synthesis of molecules with improved functionality. The processing routes toward doped organic films and the important doping-processing-nanostructure relationships, are also discussed. We conclude the review by highlighting how doping can enhance the operating characteristics of various organic devices.
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Affiliation(s)
- Alberto D Scaccabarozzi
- King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Thuwal 23955, Saudi Arabia
| | - Aniruddha Basu
- King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Thuwal 23955, Saudi Arabia
| | - Filip Aniés
- Department of Chemistry and Centre for Processable Electronics, Imperial College London, London W12 0BZ, U.K
| | - Jian Liu
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Göteborg 412 96, Sweden
| | - Osnat Zapata-Arteaga
- Materials Science Institute of Barcelona, ICMAB-CSIC, Campus UAB, 08193 Bellaterra, Spain
| | - Ross Warren
- Institut für Physik & IRIS Adlershof, Humboldt-Universität zu Berlin, 12489 Berlin, Germany
| | - Yuliar Firdaus
- King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Thuwal 23955, Saudi Arabia.,Research Center for Electronics and Telecommunication, Indonesian Institute of Science, Jalan Sangkuriang Komplek LIPI Building 20 level 4, Bandung 40135, Indonesia
| | - Mohamad Insan Nugraha
- King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Thuwal 23955, Saudi Arabia
| | - Yuanbao Lin
- King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Thuwal 23955, Saudi Arabia
| | - Mariano Campoy-Quiles
- Materials Science Institute of Barcelona, ICMAB-CSIC, Campus UAB, 08193 Bellaterra, Spain
| | - Norbert Koch
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Kekulé-Strasse 5, 12489 Berlin, Germany.,Institut für Physik & IRIS Adlershof, Humboldt-Universität zu Berlin, 12489 Berlin, Germany
| | - Christian Müller
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Göteborg 412 96, Sweden
| | - Leonidas Tsetseris
- Department of Physics, National Technical University of Athens, Athens GR-15780, Greece
| | - Martin Heeney
- Department of Chemistry and Centre for Processable Electronics, Imperial College London, London W12 0BZ, U.K
| | - Thomas D Anthopoulos
- King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Thuwal 23955, Saudi Arabia
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13
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Medina Rivero S, Urieta‐Mora J, Molina‐Ontoria A, Martín‐Fuentes C, Urgel JI, Zubiria‐Ulacia M, Lloveras V, Casanova D, Martínez JI, Veciana J, Écija D, Martín N, Casado J. A Trapezoidal Octacyanoquinoid Acceptor Forms Solution and Surface Products by Antiparallel Shape Fitting with Conformational Dipole Momentum Switch. Angew Chem Int Ed Engl 2021; 60:17887-17892. [PMID: 34086392 PMCID: PMC8456967 DOI: 10.1002/anie.202104294] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Indexed: 11/13/2022]
Abstract
A new compound (1) formed by two antiparallelly disposed tetracyano thienoquinoidal units has been synthesized and studied by electrochemistry, UV/Vis-NIR, IR, EPR, and transient spectroscopy. Self-assembly of 1 on a Au(111) surface has been investigated by scanning tunneling microscopy. Experiments have been rationalized by quantum chemical calculations. 1 exhibits a unique charge distribution in its anionic form, with a gradient of charge yielding a neat molecular in-plane electric dipole momentum, which transforms out-of-plane after surface deposition due to twisted→folded conformational change and to partial charge transfer from Au(111). Intermolecular van der Waals interactions and antiparallel trapezoidal shape fitting lead to the formation of an optimal dense on Au(111) two-dimensional assembly of 1.
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Affiliation(s)
- Samara Medina Rivero
- Department of Physical ChemistryUniversity of MálagaAndalucia-Tech Campus de Teatinos s/n29071MálagaSpain
| | - Javier Urieta‐Mora
- IMDEA-Nanociencia, C/Faraday 9Ciudad Universitaria de Cantoblanco28049MadridSpain
- Department of Organic ChemistryFaculty of ChemistryComplutense University of Madrid28040MadridSpain
| | | | | | - José I. Urgel
- IMDEA-Nanociencia, C/Faraday 9Ciudad Universitaria de Cantoblanco28049MadridSpain
| | - Maria Zubiria‐Ulacia
- DonostiaInternational Physics Center (DIPC) & IKERBASQUE—Basque Foundation for SciencePaseo Manuel de Lardizabal, 420018Donostia-San SebastiánEuskadiSpain
| | - Vega Lloveras
- Department of Molecular Nanoscience and Organic MaterialsInstitut de Ciència de Materials de Barcelona (ICMAB-CSIC) and Networking Research Center on BioengineeringBiomaterials and Nanomedicine (CIBER-BBN)Campus de la UAB08193BellaterraSpain
| | - David Casanova
- DonostiaInternational Physics Center (DIPC) & IKERBASQUE—Basque Foundation for SciencePaseo Manuel de Lardizabal, 420018Donostia-San SebastiánEuskadiSpain
| | - José I. Martínez
- Department of Nanostructures and Low-dimensional MaterialsInstitute of Materials Science of Madrid (ICMM-CSIC)Ciudad Universitaria de CantoblancoC/Sor Juana Inés de la Cruz 328049MadridSpain
| | - Jaume Veciana
- Department of Molecular Nanoscience and Organic MaterialsInstitut de Ciència de Materials de Barcelona (ICMAB-CSIC) and Networking Research Center on BioengineeringBiomaterials and Nanomedicine (CIBER-BBN)Campus de la UAB08193BellaterraSpain
| | - David Écija
- IMDEA-Nanociencia, C/Faraday 9Ciudad Universitaria de Cantoblanco28049MadridSpain
| | - Nazario Martín
- IMDEA-Nanociencia, C/Faraday 9Ciudad Universitaria de Cantoblanco28049MadridSpain
- Department of Organic ChemistryFaculty of ChemistryComplutense University of Madrid28040MadridSpain
| | - Juan Casado
- Department of Physical ChemistryUniversity of MálagaAndalucia-Tech Campus de Teatinos s/n29071MálagaSpain
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14
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Medina Rivero S, Urieta‐Mora J, Molina‐Ontoria A, Martín‐Fuentes C, Urgel JI, Zubiria‐Ulacia M, Lloveras V, Casanova D, Martínez JI, Veciana J, Écija D, Martín N, Casado J. A Trapezoidal Octacyanoquinoid Acceptor Forms Solution and Surface Products by Antiparallel Shape Fitting with Conformational Dipole Momentum Switch. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104294] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Samara Medina Rivero
- Department of Physical Chemistry University of Málaga Andalucia-Tech Campus de Teatinos s/n 29071 Málaga Spain
| | - Javier Urieta‐Mora
- IMDEA-Nanociencia, C/Faraday 9 Ciudad Universitaria de Cantoblanco 28049 Madrid Spain
- Department of Organic Chemistry Faculty of Chemistry Complutense University of Madrid 28040 Madrid Spain
| | | | | | - José I. Urgel
- IMDEA-Nanociencia, C/Faraday 9 Ciudad Universitaria de Cantoblanco 28049 Madrid Spain
| | - Maria Zubiria‐Ulacia
- Donostia International Physics Center (DIPC) & IKERBASQUE—Basque Foundation for Science Paseo Manuel de Lardizabal, 4 20018 Donostia-San Sebastián Euskadi Spain
| | - Vega Lloveras
- Department of Molecular Nanoscience and Organic Materials Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) and Networking Research Center on Bioengineering Biomaterials and Nanomedicine (CIBER-BBN) Campus de la UAB 08193 Bellaterra Spain
| | - David Casanova
- Donostia International Physics Center (DIPC) & IKERBASQUE—Basque Foundation for Science Paseo Manuel de Lardizabal, 4 20018 Donostia-San Sebastián Euskadi Spain
| | - José I. Martínez
- Department of Nanostructures and Low-dimensional Materials Institute of Materials Science of Madrid (ICMM-CSIC) Ciudad Universitaria de Cantoblanco C/Sor Juana Inés de la Cruz 3 28049 Madrid Spain
| | - Jaume Veciana
- Department of Molecular Nanoscience and Organic Materials Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) and Networking Research Center on Bioengineering Biomaterials and Nanomedicine (CIBER-BBN) Campus de la UAB 08193 Bellaterra Spain
| | - David Écija
- IMDEA-Nanociencia, C/Faraday 9 Ciudad Universitaria de Cantoblanco 28049 Madrid Spain
| | - Nazario Martín
- IMDEA-Nanociencia, C/Faraday 9 Ciudad Universitaria de Cantoblanco 28049 Madrid Spain
- Department of Organic Chemistry Faculty of Chemistry Complutense University of Madrid 28040 Madrid Spain
| | - Juan Casado
- Department of Physical Chemistry University of Málaga Andalucia-Tech Campus de Teatinos s/n 29071 Málaga Spain
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15
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Üngör Ö, Burrows M, Liu T, Bodensteiner M, Adhikari Y, Hua Z, Casas B, Balicas L, Xiong P, Shatruk M. Paramagnetic Molecular Semiconductors Combining Anisotropic Magnetic Ions with TCNQ Radical Anions. Inorg Chem 2021; 60:10502-10512. [PMID: 34191491 DOI: 10.1021/acs.inorgchem.1c01140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report the synthesis, magnetic properties, and transport properties of paramagnetic metal complexes, [Co(DMF)4(TCNQ)2](TCNQ)2 (1), [La(DMF)8(TCNQ)](TCNQ)5 (2), and [Nd(DMF)7(TCNQ)](TCNQ)5 (3) (DMF = N,N-dimethylformamide, TCNQ = 7,7,8,8-tetracyanoquinodimethane). All three compounds contain fractionally charged TCNQδ- anions (0 < δ < 1) and mononuclear complex cations in which the coordination environment of a metal center includes several DMF molecules and one or two terminally coordinated TCNQδ- anions. The coordinated TCNQδ- anions participate in π-π stacking interactions with noncoordinated TCNQδ- anions, forming columnar substructures that provide efficient charge-transporting pathways. As a result, temperature-dependent conductivity measurements demonstrate that all three compounds exhibit semiconducting behavior.
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Affiliation(s)
- Ökten Üngör
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Maylu Burrows
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Tianhan Liu
- Department of Physics, Florida State University, Tallahassee, Florida 32306, United States
| | - Michael Bodensteiner
- Department of Chemistry and Pharmacy, University of Regensburg, 93040 Regensburg, Germany
| | - Yuwaraj Adhikari
- Department of Physics, Florida State University, Tallahassee, Florida 32306, United States
| | - Zhenqi Hua
- Department of Physics, Florida State University, Tallahassee, Florida 32306, United States
| | - Brian Casas
- National High Magnetic Field Laboratory, Tallahassee, Florida 32310, United States
| | - Luis Balicas
- Department of Physics, Florida State University, Tallahassee, Florida 32306, United States.,National High Magnetic Field Laboratory, Tallahassee, Florida 32310, United States
| | - Peng Xiong
- Department of Physics, Florida State University, Tallahassee, Florida 32306, United States
| | - Michael Shatruk
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States.,National High Magnetic Field Laboratory, Tallahassee, Florida 32310, United States
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16
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Escayola S, Tonnelé C, Matito E, Poater A, Ottosson H, Solà M, Casanova D. Guidelines for Tuning the Excited State Hückel–Baird Hybrid Aromatic Character of Pro‐Aromatic Quinoidal Compounds**. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sílvia Escayola
- Institute of Computational Chemistry and Catalysis and Department of Chemistry University of Girona C/ M. Aurèlia Capmany, 69 17003 Girona Catalonia Spain
- Donostia International Physics Center (DIPC) Donostia Euskadi Spain
| | - Claire Tonnelé
- Donostia International Physics Center (DIPC) Donostia Euskadi Spain
| | - Eduard Matito
- Donostia International Physics Center (DIPC) Donostia Euskadi Spain
- Ikerbasque Foundation for Science 48009 Bilbao Euskadi Spain
| | - Albert Poater
- Institute of Computational Chemistry and Catalysis and Department of Chemistry University of Girona C/ M. Aurèlia Capmany, 69 17003 Girona Catalonia Spain
| | - Henrik Ottosson
- Department of Chemistry—Ångström Laboratory Uppsala University 75120 Uppsala Sweden
| | - Miquel Solà
- Institute of Computational Chemistry and Catalysis and Department of Chemistry University of Girona C/ M. Aurèlia Capmany, 69 17003 Girona Catalonia Spain
| | - David Casanova
- Donostia International Physics Center (DIPC) Donostia Euskadi Spain
- Ikerbasque Foundation for Science 48009 Bilbao Euskadi Spain
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17
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Fraxedas J, Vollmer A, Koch N, de Caro D, Jacob K, Faulmann C, Valade L. Characterization of Charge States in Conducting Organic Nanoparticles by X-ray Photoemission Spectroscopy. MATERIALS 2021; 14:ma14082058. [PMID: 33921815 PMCID: PMC8072544 DOI: 10.3390/ma14082058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/14/2021] [Accepted: 04/16/2021] [Indexed: 12/18/2022]
Abstract
The metallic and semiconducting character of a large family of organic materials based on the electron donor molecule tetrathiafulvalene (TTF) is rooted in the partial oxidation (charge transfer or mixed valency) of TTF derivatives leading to partially filled molecular orbital-based electronic bands. The intrinsic structure of such complexes, with segregated donor and acceptor molecular chains or planes, leads to anisotropic electronic properties (quasi one-dimensional or two-dimensional) and morphology (needle-like or platelet-like crystals). Recently, such materials have been synthesized as nanoparticles by intentionally frustrating the intrinsic anisotropic growth. X-ray photoemission spectroscopy (XPS) has emerged as a valuable technique to characterize the transfer of charge due to its ability to discriminate the different chemical environments or electronic configurations manifested by chemical shifts of core level lines in high-resolution spectra. Since the photoemission process is inherently fast (well below the femtosecond time scale), dynamic processes can be efficiently explored. We determine here the fingerprint of partial oxidation on the photoemission lines of nanoparticles of selected TTF-based conductors.
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Affiliation(s)
- Jordi Fraxedas
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain
- Correspondence: (J.F.); (D.d.C.)
| | - Antje Vollmer
- Helmholtz Zentrum Berlin Materialien & Energie GmbH BESSY, D-12489 Berlin, Germany;
| | - Norbert Koch
- Institute of Physics, Humboldt University, D-12489 Berlin, Germany;
| | - Dominique de Caro
- LCC-CNRS, Université de Toulouse, CNRS, UPS, F-31077 Toulouse, France; (K.J.); (C.F.); (L.V.)
- Correspondence: (J.F.); (D.d.C.)
| | - Kane Jacob
- LCC-CNRS, Université de Toulouse, CNRS, UPS, F-31077 Toulouse, France; (K.J.); (C.F.); (L.V.)
| | - Christophe Faulmann
- LCC-CNRS, Université de Toulouse, CNRS, UPS, F-31077 Toulouse, France; (K.J.); (C.F.); (L.V.)
| | - Lydie Valade
- LCC-CNRS, Université de Toulouse, CNRS, UPS, F-31077 Toulouse, France; (K.J.); (C.F.); (L.V.)
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18
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Iguchi H, Furutani H, Kimizuka N. Ionic Charge-Transfer Liquid Crystals Formed by Alternating Supramolecular Copolymerization of Liquid π-Donors and TCNQ. Front Chem 2021; 9:657246. [PMID: 33855013 PMCID: PMC8039295 DOI: 10.3389/fchem.2021.657246] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 03/04/2021] [Indexed: 11/16/2022] Open
Abstract
A new family of liquid π-donors, lipophilic dihydrophenazine (DHP) derivatives, show remarkably high π-electron-donor property which exhibit supramolecular alternating copolymerization with 7,7,8,8-tetracyanoquinodimethane (TCNQ), giving ionic charge-transfer (ICT) complexes. The ICT complexes form distinct columnar liquid crystalline (LC) mesophases with well-defined alternating molecular alignment as demonstrated by UV-Vis-NIR spectra, IR spectra, and X-ray diffraction (XRD) patterns. These liquid crystalline ICT complexes display unique phase transitions in response to mechanical stress: the columnar ICT phase is converted to macroscopically oriented smectic-like mesophases upon applying shear force. Although there exist reports on the formation of ICT in the crystalline state, this study provides the first rational identification of ICT mesophases based on the spectroscopic and structural data. The liquid crystalline ICT phases are generated by strong electronic interactions between the liquid π-donors and solid acceptors. It clearly shows the significance of simultaneous fulfillment of strong π-donating ability and ordered self-assembly of the stable ICT pairs. The flexible, stimuli-responsive structural transformation of the ICT complexes offer a new perspective for designing processable CT systems with controlled hierarchical self-assembly and electronic structures.
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Affiliation(s)
- Hiroaki Iguchi
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Fukuoka, Japan.,Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, Japan
| | - Hidenori Furutani
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Fukuoka, Japan
| | - Nobuo Kimizuka
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Fukuoka, Japan.,Center for Molecular Systems (CMS), Kyushu University, Fukuoka, Japan
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19
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Escayola S, Tonnelé C, Matito E, Poater A, Ottosson H, Solà M, Casanova D. Guidelines for Tuning the Excited State Hückel–Baird Hybrid Aromatic Character of Pro‐Aromatic Quinoidal Compounds**. Angew Chem Int Ed Engl 2021; 60:10255-10265. [DOI: 10.1002/anie.202100261] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Indexed: 11/06/2022]
Affiliation(s)
- Sílvia Escayola
- Institute of Computational Chemistry and Catalysis and Department of Chemistry University of Girona C/ M. Aurèlia Capmany, 69 17003 Girona Catalonia Spain
- Donostia International Physics Center (DIPC) Donostia Euskadi Spain
| | - Claire Tonnelé
- Donostia International Physics Center (DIPC) Donostia Euskadi Spain
| | - Eduard Matito
- Donostia International Physics Center (DIPC) Donostia Euskadi Spain
- Ikerbasque Foundation for Science 48009 Bilbao Euskadi Spain
| | - Albert Poater
- Institute of Computational Chemistry and Catalysis and Department of Chemistry University of Girona C/ M. Aurèlia Capmany, 69 17003 Girona Catalonia Spain
| | - Henrik Ottosson
- Department of Chemistry—Ångström Laboratory Uppsala University 75120 Uppsala Sweden
| | - Miquel Solà
- Institute of Computational Chemistry and Catalysis and Department of Chemistry University of Girona C/ M. Aurèlia Capmany, 69 17003 Girona Catalonia Spain
| | - David Casanova
- Donostia International Physics Center (DIPC) Donostia Euskadi Spain
- Ikerbasque Foundation for Science 48009 Bilbao Euskadi Spain
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20
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Abstract
Organic semiconductors are being pursued with vigor for the development of efficient and smart electronics. As a brief tutorial account, we traverse the fundamentals and advancements in the area and provide a crystal engineering perspective.
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Affiliation(s)
- Aijaz A. Dar
- Department of Chemistry, Inorganic Section, University of Kashmir, Hazratbal, Srinagar, J&K-190006, India
| | - Shahida Rashid
- Department of Chemistry, Inorganic Section, University of Kashmir, Hazratbal, Srinagar, J&K-190006, India
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21
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Gainar A, Lai T, Oliveras‐González C, Pop F, Raynal M, Isare B, Bouteiller L, Linares M, Canevet D, Avarvari N, Sallé M. Tuning the Organogelating and Spectroscopic Properties of a
C
3
‐Symmetric Pyrene‐Based Gelator through Charge Transfer. Chemistry 2020; 27:2410-2420. [DOI: 10.1002/chem.202003914] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 10/22/2020] [Indexed: 11/09/2022]
Affiliation(s)
- Adrian Gainar
- CNRS Institut Parisien de Chimie Moléculaire Equipe Chimie des Polymères Sorbonne Université 4 Place Jussieu 75005 Paris France
| | - Thanh‐Loan Lai
- Laboratoire MOLTECH-Anjou UNIV. Angers, UMR CNRS 6200, SFR MATRIX 2 Bd Lavoisier 49045 Angers Cedex France
| | - Cristina Oliveras‐González
- Laboratoire MOLTECH-Anjou UNIV. Angers, UMR CNRS 6200, SFR MATRIX 2 Bd Lavoisier 49045 Angers Cedex France
| | - Flavia Pop
- Laboratoire MOLTECH-Anjou UNIV. Angers, UMR CNRS 6200, SFR MATRIX 2 Bd Lavoisier 49045 Angers Cedex France
| | - Matthieu Raynal
- CNRS Institut Parisien de Chimie Moléculaire Equipe Chimie des Polymères Sorbonne Université 4 Place Jussieu 75005 Paris France
| | - Benjamin Isare
- CNRS Institut Parisien de Chimie Moléculaire Equipe Chimie des Polymères Sorbonne Université 4 Place Jussieu 75005 Paris France
| | - Laurent Bouteiller
- CNRS Institut Parisien de Chimie Moléculaire Equipe Chimie des Polymères Sorbonne Université 4 Place Jussieu 75005 Paris France
| | - Mathieu Linares
- Laboratory of Organic Electronics and Group of Scientific Visualization, ITN Linköping University 60174 Norrköping Sweden
- Swedish e-Science Reseach Center (SeRC) Linkoping University 58183 Linköping Sweden
| | - David Canevet
- Laboratoire MOLTECH-Anjou UNIV. Angers, UMR CNRS 6200, SFR MATRIX 2 Bd Lavoisier 49045 Angers Cedex France
| | - Narcis Avarvari
- Laboratoire MOLTECH-Anjou UNIV. Angers, UMR CNRS 6200, SFR MATRIX 2 Bd Lavoisier 49045 Angers Cedex France
| | - Marc Sallé
- Laboratoire MOLTECH-Anjou UNIV. Angers, UMR CNRS 6200, SFR MATRIX 2 Bd Lavoisier 49045 Angers Cedex France
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22
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Abstract
Organic charge-transfer cocrystals (CTCs) have attracted significant research attention due to their wide range of potential applications in organic optoelectronic devices, organic magnetic devices, organic energy devices, pharmaceutical industry, etc. The physical properties of organic charge transfer cocrystals can be tuned not only by changing the donor and acceptor molecules, but also by varying the stoichiometry between the donor and the acceptor. However, the importance of the stoichiometry on tuning the properties of CTCs has still been underestimated. In this review, single-crystal growth methods of organic CTCs with different stoichiometries are first introduced, and their physical properties, including the degree of charge transfer, electrical conductivity, and field-effect mobility, are then discussed. Finally, a perspective of this research direction is provided to give the readers a general understanding of the concept.
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23
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Liu JT, Hase H, Taylor S, Salzmann I, Forgione P. Approaching the Integer‐Charge Transfer Regime in Molecularly Doped Oligothiophenes by Efficient Decarboxylative Cross‐Coupling. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201914458] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Jiang Tian Liu
- Department of Chemistry and Biochemistry Concordia University 7141 rue Sherbrooke O. Montréal QC H4B 1R6 Canada
| | - Hannes Hase
- Department of Physics Concordia University 7141 rue Sherbrooke O. Montréal QC H4B 1R6 Canada
| | - Sarah Taylor
- Department of Chemistry and Biochemistry Concordia University 7141 rue Sherbrooke O. Montréal QC H4B 1R6 Canada
| | - Ingo Salzmann
- Department of Chemistry and Biochemistry Concordia University 7141 rue Sherbrooke O. Montréal QC H4B 1R6 Canada
- Department of Physics Concordia University 7141 rue Sherbrooke O. Montréal QC H4B 1R6 Canada
- Centre for Research in Molecular Modeling (CERMM) Centre for NanoScience Research (CeNSR) Concordia University 7141 rue Sherbrooke O. Montreal QC H4B 1R6 Canada
| | - Pat Forgione
- Department of Chemistry and Biochemistry Concordia University 7141 rue Sherbrooke O. Montréal QC H4B 1R6 Canada
- Center for Green Chemistry and Catalysis McGill University 801 rue Sherbrooke O. Montréal QC H3A 0B8 Canada
- Centre for Research in Molecular Modeling (CERMM) Centre for NanoScience Research (CeNSR) Concordia University 7141 rue Sherbrooke O. Montreal QC H4B 1R6 Canada
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24
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Mukherjee V, Ojha DP. Spectroscopic investigation of some electron withdrawing groups substituted TTF donor. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 231:117849. [PMID: 31839582 DOI: 10.1016/j.saa.2019.117849] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 11/19/2019] [Accepted: 11/23/2019] [Indexed: 06/10/2023]
Abstract
The structure optimization and spectroscopic properties for some derivatives of tetrathiafulvalene in both the neutral and ionized forms have been studied. The electron withdrawing groups like -CN, -CF3 and -CO2Me were considered to study the effect on structure, vibrational and electronic properties of tetrathiafulvalene. All the calculations were carried out at density functional theory incorporated with B3LYP exchange functional. The CAM-B3LYP exchange-correlation energy functional was also assessed for the determination of molecular structures. The normal coordinate analysis was performed to compute potential energy distributions of the normal modes which were used for the subsequent normal modes assignment. The temperature dependent Raman spectra have been presented showing the relative reduction in Raman intensity. The ionization of TTF-CN leads a very interesting effect. The IR spectrum of neutral TTF-CN contains a very strong CN stretching band at 2251 cm-1 while it is completely diminished in IR spectrum of TTF-CN cation. NBO analyses were also performed to study the electronic structure, second order perturbation and HOMO-LUMO and their energies. Some important thermodynamical parameters have been presented in which entropy calculation reveals below 50% contribution of vibrational motion in all the three molecules.
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Affiliation(s)
- V Mukherjee
- SUIIT, Sambalpur University, Sambalpur, Odisha, India.
| | - D P Ojha
- School of Physics, Sambalpur University, Sambalpur, Odisha, India
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25
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Liu JT, Hase H, Taylor S, Salzmann I, Forgione P. Approaching the Integer-Charge Transfer Regime in Molecularly Doped Oligothiophenes by Efficient Decarboxylative Cross-Coupling. Angew Chem Int Ed Engl 2020; 59:7146-7153. [PMID: 31961982 DOI: 10.1002/anie.201914458] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Indexed: 01/08/2023]
Abstract
A library of symmetrical linear oligothiophene was prepared employing decarboxylative cross-coupling reaction as the key transformation. Thiophene potassium carboxylate salts were used as cross-coupling partners without the need of co-catalyst, base, or additives. This method demonstrates complete chemoselectivity and is a comprehensive greener approach compared to the existing methods. The modularity of this approach is demonstrated with the preparation of discreet oligothiophenes with up to 10 thiophene repeat units. Symmetrical oligothiophenes are prototypical organic semiconductors where their molecular electrical doping as a function of the chain length can be assessed spectroscopically. An oligothiophene critical length for integer charge transfer was observed to be 10 thiophene units, highlighting the potential use of discrete oligothiophenes as doped conduction or injection layers in organic electronics applications.
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Affiliation(s)
- Jiang Tian Liu
- Department of Chemistry and Biochemistry, Concordia University, 7141 rue Sherbrooke O., Montréal, QC, H4B 1R6, Canada
| | - Hannes Hase
- Department of Physics, Concordia University, 7141 rue Sherbrooke O., Montréal, QC, H4B 1R6, Canada
| | - Sarah Taylor
- Department of Chemistry and Biochemistry, Concordia University, 7141 rue Sherbrooke O., Montréal, QC, H4B 1R6, Canada
| | - Ingo Salzmann
- Department of Chemistry and Biochemistry, Concordia University, 7141 rue Sherbrooke O., Montréal, QC, H4B 1R6, Canada.,Department of Physics, Concordia University, 7141 rue Sherbrooke O., Montréal, QC, H4B 1R6, Canada.,Centre for Research in Molecular Modeling (CERMM), Centre for NanoScience Research (CeNSR), Concordia University, 7141 rue Sherbrooke O., Montreal, QC, H4B 1R6, Canada
| | - Pat Forgione
- Department of Chemistry and Biochemistry, Concordia University, 7141 rue Sherbrooke O., Montréal, QC, H4B 1R6, Canada.,Center for Green Chemistry and Catalysis, McGill University, 801 rue Sherbrooke O., Montréal, QC, H3A 0B8, Canada.,Centre for Research in Molecular Modeling (CERMM), Centre for NanoScience Research (CeNSR), Concordia University, 7141 rue Sherbrooke O., Montreal, QC, H4B 1R6, Canada
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26
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Starodub TN, Barszcz B, Bednarski W, Mizera A, Starodub VA. Optical properties of RAS (N–CH3-2-NH2-5Cl-Py)(TCNQ)(CH3CN) solvate. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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27
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Ishikawa R, Ueno S, Nifuku S, Horii Y, Iguchi H, Miyazaki Y, Nakano M, Hayami S, Kumagai S, Katoh K, Li ZY, Yamashita M, Kawata S. Simultaneous Spin-Crossover Transition and Conductivity Switching in a Dinuclear Iron(II) Coordination Compound Based on 7,7',8,8'-Tetracyano-p-quinodimethane. Chemistry 2020; 26:1278-1285. [PMID: 31670412 DOI: 10.1002/chem.201903934] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 10/31/2019] [Indexed: 11/08/2022]
Abstract
The reaction of Fe(OAc)2 and Hbpypz with neutral TCNQ results in the formation of [Fe2 (bpypz)2 (TCNQ)2 ](TCNQ)2 (1), in which Hbpypz=3,5-bis(2-pyridyl)pyrazole and TCNQ=7,7',8,8'-tetracyano-p-quinodimethane. Crystal packing of 1 with uncoordinated TCNQ and π-π stacking of bpypz- ligands produces an extended two-dimensional supramolecular coordination assembly. Temperature dependence of the dc magnetic susceptibility and heat capacity measurements indicate that 1 undergoes an abrupt spin crossover (SCO) with thermal spin transition temperatures of 339 and 337 K for the heating and cooling modes, respectively, resulting in a thermal hysteresis of 2 K. Remarkably, the temperature dependence of dc electrical transport exhibits a transition that coincides with thermal SCO, demonstrating the thermally induced magnetic and electrical bistability of 1, strongly correlating magnetism with electrical conductivity. This outstanding feature leads to thermally induced simultaneous switching of magnetism and electrical conductivity and a magnetoresistance effect.
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Affiliation(s)
- Ryuta Ishikawa
- Department of Chemistry, Faculty of Science, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-0180, Japan
| | - Shuya Ueno
- Department of Chemistry, Faculty of Science, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-0180, Japan
| | - Shoei Nifuku
- Department of Chemistry, Faculty of Science, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-0180, Japan
| | - Yoji Horii
- Research Center for Structural Thermodynamics, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka, 560-0043, Japan
| | - Hiroaki Iguchi
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba Aramaki, Aoba-ku, Sendai, Miyagi, 980-8578, Japan
| | - Yuji Miyazaki
- Research Center for Structural Thermodynamics, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka, 560-0043, Japan
| | - Motohiro Nakano
- Research Center for Structural Thermodynamics, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka, 560-0043, Japan
| | - Shinya Hayami
- Department of Chemistry, Faculty of Advanced Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto, 860-8555, Japan.,Institute of Pulsed Power Science, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto, 860-8555, Japan
| | - Shohei Kumagai
- Department of Advanced Materials Sciences, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8561, Japan
| | - Keiichi Katoh
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba Aramaki, Aoba-ku, Sendai, Miyagi, 980-8578, Japan
| | - Zhao-Yang Li
- School of Materials Science and Engineering, Nankai University, Tianjin, 300350, P. R. China
| | - Masahiro Yamashita
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba Aramaki, Aoba-ku, Sendai, Miyagi, 980-8578, Japan.,World Premier International Research Center Initiative, Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi, 980-8577, Japan.,School of Materials Science and Engineering, Nankai University, Tianjin, 300350, P. R. China
| | - Satoshi Kawata
- Department of Chemistry, Faculty of Science, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-0180, Japan
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28
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Kim T, Kim W, Vakuliuk O, Gryko DT, Kim D. Two-Step Charge Separation Passing Through the Partial Charge-Transfer State in a Molecular Dyad. J Am Chem Soc 2019; 142:1564-1573. [DOI: 10.1021/jacs.9b12016] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Taeyeon Kim
- Department of Chemistry and Spectroscopy Laboratory for Functional π-Electronic Systems, Yonsei University, Seoul 03722, Korea
| | - Woojae Kim
- Department of Chemistry and Spectroscopy Laboratory for Functional π-Electronic Systems, Yonsei University, Seoul 03722, Korea
| | - Olena Vakuliuk
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Daniel T. Gryko
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Dongho Kim
- Department of Chemistry and Spectroscopy Laboratory for Functional π-Electronic Systems, Yonsei University, Seoul 03722, Korea
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29
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Prasoon A, Dhara B, Roy D, Rana S, Bhand S, Ballav N. Achieving current rectification ratios ≥ 10 5 across thin films of coordination polymer. Chem Sci 2019; 10:10040-10047. [PMID: 32015817 PMCID: PMC6977544 DOI: 10.1039/c9sc03733k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 09/05/2019] [Indexed: 01/01/2023] Open
Abstract
A record value of the current rectification ratio (RR ≥ 105) across molecularly doped thin films of a Cu(ii)-coordination polymer is achieved.
Downsizing coordination polymers (CPs) to thin film configurations is a prerequisite for device applications. However, fabrication of thin films of CPs including metal–organic frameworks (MOFs) with reasonable electrical conductivity is challenging. Herein, thin film fabrication of a Cu(ii)-CP employing a layer-by-layer method is demonstrated whereby a self-assembled monolayer on Au was used as the functionalized substrate. Growth of the Cu(ii)-CP at the solid–liquid interface generated open-metal Cu(ii) sites in the thin film which were susceptible to activation by molecular dopant molecules. A significant enhancement in in-plane electrical conductivity and an unheralded cross-plane current rectification ratio (exceeding 105 both at room-temperature and at an elevated temperature) were achieved. Such a remarkable rectification ratio was realized, similar to those of commercial Si rectifier diodes. This phenomenon is attributed to the formation of an electronic heterostructure in the molecularly doped thin film. Molecular doping additionally transformed the interfacial properties of thin films from hydrophilic to highly hydrophobic.
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Affiliation(s)
- Anupam Prasoon
- Department of Chemistry , Indian Institute of Science Education and Research (IISER) , Dr Homi Bhabha Road, Pashan , Pune 411008 , India .
| | - Barun Dhara
- Department of Chemistry , Indian Institute of Science Education and Research (IISER) , Dr Homi Bhabha Road, Pashan , Pune 411008 , India .
| | - Debashree Roy
- Department of Chemistry , Indian Institute of Science Education and Research (IISER) , Dr Homi Bhabha Road, Pashan , Pune 411008 , India .
| | - Shammi Rana
- Department of Chemistry , Indian Institute of Science Education and Research (IISER) , Dr Homi Bhabha Road, Pashan , Pune 411008 , India .
| | - Sujit Bhand
- Department of Chemistry , Indian Institute of Science Education and Research (IISER) , Dr Homi Bhabha Road, Pashan , Pune 411008 , India .
| | - Nirmalya Ballav
- Department of Chemistry , Indian Institute of Science Education and Research (IISER) , Dr Homi Bhabha Road, Pashan , Pune 411008 , India .
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30
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Kim J, Oh J, Park S, Zafra JL, DeFrancisco JR, Casanova D, Lim M, Tovar JD, Casado J, Kim D. Two-electron transfer stabilized by excited-state aromatization. Nat Commun 2019; 10:4983. [PMID: 31676760 PMCID: PMC6825201 DOI: 10.1038/s41467-019-12986-w] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 10/10/2019] [Indexed: 12/28/2022] Open
Abstract
The scientific significance of excited-state aromaticity concerns with the elucidation of processes and properties in the excited states. Here, we focus on TMTQ, an oligomer composed of a central 1,6-methano[10]annulene and 5-dicyanomethyl-thiophene peripheries (acceptor-donor-acceptor system), and investigate a two-electron transfer process dominantly stabilized by an aromatization in the low-energy lying excited state. Our spectroscopic measurements quantitatively observe the shift of two π-electrons between donor and acceptors. It is revealed that this two-electron transfer process accompanies the excited-state aromatization, producing a Baird aromatic 8π core annulene in TMTQ. Biradical character on each terminal dicyanomethylene group of TMTQ allows a pseudo triplet-like configuration on the 8π core annulene with multiexcitonic nature, which stabilizes the energetically unfavorable two-charge separated state by the formation of Baird aromatic core annulene. This finding provides a comprehensive understanding of the role of excited-state aromaticity and insight to designing functional photoactive materials. Excited state aromaticity gives rise to unique photophysical properties which may aid the design of functional photoactive materials. Here, the authors spectroscopically characterize an acceptor-donor-acceptor system featuring a two-electron transfer process stabilized by aromatization in the lower energy excited state.
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Affiliation(s)
- Jinseok Kim
- Spectroscopy Laboratory for Functional π-electronic Systems and Department of Chemistry, Yonsei University, Seoul, 03722, Korea
| | - Juwon Oh
- Spectroscopy Laboratory for Functional π-electronic Systems and Department of Chemistry, Yonsei University, Seoul, 03722, Korea
| | - Seongchul Park
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan, 46241, Korea
| | - Jose L Zafra
- Department of Physical Chemistry, University of Málaga, Andalucia-Tech, Campus de Teatinos s/n, 29071, Málaga, Spain
| | - Justin R DeFrancisco
- Department of Chemistry, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD, 21218, USA
| | - David Casanova
- Donostia, International Physics Center (DIPC) & IKERBASQUE - Basque Foundation for Science, Paseo Manuel de Lardizabal, 4, 20018, Donostia-San Sebastián, Euskadi, Spain.
| | - Manho Lim
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan, 46241, Korea.
| | - John D Tovar
- Department of Chemistry, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD, 21218, USA.
| | - Juan Casado
- Department of Physical Chemistry, University of Málaga, Andalucia-Tech, Campus de Teatinos s/n, 29071, Málaga, Spain.
| | - Dongho Kim
- Spectroscopy Laboratory for Functional π-electronic Systems and Department of Chemistry, Yonsei University, Seoul, 03722, Korea.
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31
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Kiyota Y, Jeon IR, Jeannin O, Beau M, Kawamoto T, Alemany P, Canadell E, Mori T, Fourmigué M. Electronic engineering of a tetrathiafulvalene charge-transfer salt via reduced symmetry induced by combined substituents. Phys Chem Chem Phys 2019; 21:22639-22646. [PMID: 31592522 DOI: 10.1039/c9cp04320a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A 1 : 1 metallic charge-transfer salt is obtained by cosublimation of (Z,E)-(SMe)2Me2TTF and TCNQ. X-ray diffraction studies confirm the formation of segregated stacks comprising donor and acceptor molecules in [(E)-(SMe)2Me2TTF](TCNQ). The crystal packing features lateral SS interactions between TTF stacks, which is in sharp contrast to that in (TTF)(TCNQ). Structural analysis and theoretical studies afford a partial charge-transfer (ρ ≈ 0.52), leading to a system with the electronic structure close to quarter-filled. Resistivity measurements reveal that this material behaves as a metal down to 56 K and 22 K at 1 bar and 14.9 kbar, respectively. The thermopower is negative in the metallic regime, indicating the dominant role of the acceptor stacks for the observed conducting behavior. Analysis of single-crystal EPR spectra shows the remaining spin susceptibility at 4.3 K, suggesting the importance of the Hubbard U correction. These results highlight the judicious engineering of electronic and geometrical effects on the TTF core; the combined use of methyl and thiomethyl groups has decreased the TCNQ bandwidth while maintaining the segregated stacks, converting the metal to insulator (M-I) transition to more 4kF like. In addition, the enhanced SS contacts between the TTF stacks lead to more rapidly decreasing M-I transition temperature under various pressures.
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Affiliation(s)
- Yasuhiro Kiyota
- Department of Materials Science and Engineering, Tokyo Institute of Technology, O-okayama 2-12-1, Meguro-ku, Tokyo 152-8552, Japan
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32
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Werr M, Kaifer E, Wadepohl H, Himmel HJ. Tuneable Redox Chemistry and Electrochromism of Persistent Symmetric and Asymmetric Azine Radical Cations. Chemistry 2019; 25:12981-12990. [PMID: 31306523 DOI: 10.1002/chem.201902216] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 06/21/2019] [Indexed: 12/16/2022]
Abstract
Molecular organic radicals have been intensively studied in the last decades, due to their interesting optical, magnetic and redox properties. Here we report the synthesis and characterisation of persistent organic radicals from one-electron oxidation of redox-active azines (RAAs), composed of two guanidinyl or related groups. By connecting two different groups together, asymmetric compounds result. In this way a series of compounds with varying redox potential is obtained that could be oxidised reversibly to the mono- and the dicationic charge states. The accessible redox states were fully determined by chemical redox reactions. The standard Gibbs free energy change for disproportionation of the radical monocation into the dication and the neutral molecule in solution, estimated from cyclovoltammetric measurements, varies between 43 and 71 kJ mol-1 . While the neutral RAAs absorb predominately UV light, the radical monocations display strong absorptions covering almost the entire visible region and extending for some compounds into the NIR region. A detailed analysis of this highly reversible electrochromism is presented, and the fast switching characteristics are demonstrated in an electrochromic test device.
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Affiliation(s)
- Marco Werr
- Anorganisch Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Elisabeth Kaifer
- Anorganisch Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Hubert Wadepohl
- Anorganisch Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Hans-Jörg Himmel
- Anorganisch Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
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33
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Qin Q, Mague JT, Gould HE, Vasquez SE, Heyer AE. Crystal structures of two charge-transfer com-plexes of benzo[1,2- c:3,4- c':5,6- c'']tri-thio-phene ( D 3h -BTT). Acta Crystallogr E Crystallogr Commun 2019; 75:1573-1577. [PMID: 31636997 PMCID: PMC6775755 DOI: 10.1107/s2056989019013161] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 09/24/2019] [Indexed: 11/30/2022]
Abstract
Benzo[1,2-c:3,4-c′:5,6-c"]trithiophene (D3h-BTT) is an easily prepared electron donor that readily forms charge–transfer complexes with organic acceptors. We report here two crystal structures of its charge–transfer complexes with 7,7,8,8-tetracyanoquinodimethane (TCNQ) and buckminsterfullerene (C60). The D3h-BTT·TCNQ complex crystallizes with mixed layers of donors and acceptors, with an estimated degree of charge transfer at 0.09 e. In the D3h-BTT·C60·toluene complex, the central ring of BTT is ‘squeezed’ by the C60 molecules from both faces. However, the degree of charge transfer is low. Benzo[1,2-c:3,4-c′:5,6-c′′]trithiophene (D3h-BTT) is an easily prepared electron donor that readily forms charge–transfer complexes with organic acceptors. We report here two crystal structures of its charge–transfer complexes with 7,7,8,8-tetracyanoquinodimethane (TCNQ) and buckminsterfullerene (C60). The D3h-BTT·TCNQ complex, C12H6S3·C12H4N4, crystallizes with mixed layers of donors and acceptors, with an estimated degree of charge transfer at 0.09 e. In the D3h-BTT·C60·toluene complex, C12H6S3·C60·C7H8, the central ring of BTT is ‘squeezed’ by the C60 molecules from both faces. However, the degree of charge transfer is low. The C60 unit is disordered over two sites in a 0.766 (3):0.234 (3) ratio and was refined as a two-component inversion twin.
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Affiliation(s)
- Qian Qin
- Department of Chemistry and Biochemistry, Loyola University, New Orleans, LA, 70118, USA
| | - Joel T Mague
- Department of Chemistry, Tulane University, New Orleans, LA 70118, USA
| | - Haley E Gould
- Department of Chemistry and Biochemistry, Loyola University, New Orleans, LA, 70118, USA
| | - Samuel E Vasquez
- Department of Chemistry and Biochemistry, Loyola University, New Orleans, LA, 70118, USA
| | - Anthony E Heyer
- Department of Chemistry and Biochemistry, Loyola University, New Orleans, LA, 70118, USA
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34
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Duva G, Beyer P, Scholz R, Belova V, Opitz A, Hinderhofer A, Gerlach A, Schreiber F. Ground-state charge-transfer interactions in donor:acceptor pairs of organic semiconductors - a spectroscopic study of two representative systems. Phys Chem Chem Phys 2019; 21:17190-17199. [PMID: 31364636 DOI: 10.1039/c9cp02939g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We investigate blended donor:acceptor (D:A) thin films of the two donors diindenoperylene (DIP) and poly(3-hexylthiophene) (P3HT) mixed with the strong acceptor 1,3,4,5,7,8-hexafluorotetracyanonaphthoquinodimethane (F6TCNNQ) using Polarization-Modulation Infrared Reflection-Absorption Spectroscopy (PMIRRAS). For DIP:F6TCNNQ thin films we first carry out a comprehensive study of the structure as a function of the D : A mixing ratio, which guides the analysis of the PMIRRAS spectra. In particular, from the red-shift of the nitrile (C[triple bond, length as m-dash]N) stretching of F6TCNNQ in the different mixtures with DIP, we quantify the average ground-state charge-transfer (GS-CT) to be ρavg = (0.84 ± 0.04) e. The PMIRRAS data for P3HT:F6TCNNQ blended films reveal nearly the same shift of the CT-affected C[triple bond, length as m-dash]N stretching peak for this system. This points towards a very similar CT strength for the two systems. We extend the analysis to the relative intensity of the C[triple bond, length as m-dash]N to the C[double bond, length as m-dash]C stretching modes of F6TCNNQ in the mixtures with DIP and P3HT, respectively, and support it with DFT calculations for the isolated F6TCNNQ. Such comparison allows to identify the vibrational signatures of the acceptor mono-anion in P3HT:F6TCNNQ, thus indicating a much stronger, integer CT-type interactions for this system, in agreement with available optical spectroscopy data. Our findings stress the importance of a simultaneous analysis of C[triple bond, length as m-dash]N and C[double bond, length as m-dash]C stretching vibrations in F6TCNNQ, or similar quinoid systems, for a reliable picture of the nature of GS-CT interactions.
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Affiliation(s)
- Giuliano Duva
- University of Tübingen, Institute for Applied Physics, Auf der Morgenstelle 10, 72076 Tübingen, Germany.
| | - Paul Beyer
- Humboldt-Universität zu Berlin, Department of Physics, Newtonstraße 15, 12489 Berlin, Germany
| | - Reinhard Scholz
- Dresden Integrated Center for Applied Physics and Photonic Materials, Nöthnitzer Str. 61, 01187 Dresden, Germany
| | - Valentina Belova
- University of Tübingen, Institute for Applied Physics, Auf der Morgenstelle 10, 72076 Tübingen, Germany.
| | - Andreas Opitz
- Humboldt-Universität zu Berlin, Department of Physics, Newtonstraße 15, 12489 Berlin, Germany
| | - Alexander Hinderhofer
- University of Tübingen, Institute for Applied Physics, Auf der Morgenstelle 10, 72076 Tübingen, Germany.
| | - Alexander Gerlach
- University of Tübingen, Institute for Applied Physics, Auf der Morgenstelle 10, 72076 Tübingen, Germany.
| | - Frank Schreiber
- University of Tübingen, Institute for Applied Physics, Auf der Morgenstelle 10, 72076 Tübingen, Germany. and Center for Light-Matter Interactions, Sensors & Analytics (LISA+), Auf der Morgenstelle 15, 72076 Tübingen, Germany
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35
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Murata T, Nakasuji K, Morita Y. Development of Conducting Charge-Transfer Complexes Based on Cooperation of Hydrogen-Bond and Charge-Transfer Interactions. J SYN ORG CHEM JPN 2019. [DOI: 10.5059/yukigoseikyokaishi.77.318] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
| | | | - Yasushi Morita
- Department of Applied Chemistry, Faculty of Engineering, Aichi Institute of Technology
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36
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Yan B, Horton PN, Russell AE, Wedge CJ, Weston SC, Grossel MC. Crown ether alkali metal TCNQ complexes revisited – the impact of smaller cation complexes on their solid-state architecture and properties. CrystEngComm 2019. [DOI: 10.1039/c9ce00234k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Water molecules play a key structure-organising role in the crystallisation of 15-crown-5 complexes of lithium and sodium TCNQ in the presence of excess TCNQ0.
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Affiliation(s)
- Bingjia Yan
- School of Chemistry
- University of Southampton
- Southampton
- UK
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37
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Rivera-Torrente M, Filez M, Schneider C, van der Feltz EC, Wolkersdörfer K, Taffa DH, Wark M, Fischer RA, Weckhuysen BM. Micro-spectroscopy of HKUST-1 metal–organic framework crystals loaded with tetracyanoquinodimethane: effects of water on host–guest chemistry and electrical conductivity. Phys Chem Chem Phys 2019; 21:25678-25689. [DOI: 10.1039/c9cp05082e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Guest@MOF materials have potential in next-generation materials for electroconductive devices. Micro-spectroscopy studies of TCNQ@HKUST-1 electroconductive composites revealed the effects of spatial distribution and water vapor on this material.
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Affiliation(s)
- Miguel Rivera-Torrente
- Inorganic Chemistry and Catalysis
- Debye Institute for Nanomaterials Science
- Utrecht University
- 3584 CG Utrecht
- The Netherlands
| | - Matthias Filez
- Inorganic Chemistry and Catalysis
- Debye Institute for Nanomaterials Science
- Utrecht University
- 3584 CG Utrecht
- The Netherlands
| | | | - Ewout C. van der Feltz
- Inorganic Chemistry and Catalysis
- Debye Institute for Nanomaterials Science
- Utrecht University
- 3584 CG Utrecht
- The Netherlands
| | - Konrad Wolkersdörfer
- Institute of Chemistry
- Chemical Technology 1
- Carl von Ossietzky Universität Oldenburg
- 26129 Oldenburg
- Germany
| | - Dereje H. Taffa
- Institute of Chemistry
- Chemical Technology 1
- Carl von Ossietzky Universität Oldenburg
- 26129 Oldenburg
- Germany
| | - Michael Wark
- Institute of Chemistry
- Chemical Technology 1
- Carl von Ossietzky Universität Oldenburg
- 26129 Oldenburg
- Germany
| | - Roland A. Fischer
- Department of Chemistry
- Technische Universität München
- 85748 Garching
- Germany
| | - Bert M. Weckhuysen
- Inorganic Chemistry and Catalysis
- Debye Institute for Nanomaterials Science
- Utrecht University
- 3584 CG Utrecht
- The Netherlands
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38
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Thomas EM, Davidson EC, Katsumata R, Segalman RA, Chabinyc ML. Branched Side Chains Govern Counterion Position and Doping Mechanism in Conjugated Polythiophenes. ACS Macro Lett 2018; 7:1492-1497. [PMID: 35651223 DOI: 10.1021/acsmacrolett.8b00778] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Predicting the interactions between a semiconducting polymer and dopant is not straightforward due to the intrinsic structural and energetic disorder in polymeric systems. Although the driving force for efficient charge transfer depends on a favorable offset between the electron donor and acceptor, we demonstrate that the efficacy of doping also relies on structural constraints of incorporating a dopant molecule into the semiconducting polymer film. Here, we report the evolution in spectroscopic and electrical properties of a model conjugated polymer upon exposure to two dopant types: one that directly oxidizes the polymeric backbone and one that protonates the polymer backbone. Through vapor phase infiltration, the common charge transfer dopant, F4-TCNQ, forms a charge transfer complex (CTC) with the polymer poly(3-(2'-ethyl)hexylthiophene) (P3EHT), a conjugated polymer with the same backbone as the well-characterized polymer P3HT, resulting in a maximum electrical conductivity of 3 × 10-5 S cm-1. We postulate that the branched side chains of P3EHT force F4-TCNQ to reside between the π-faces of the crystallites, resulting in partial charge transfer between the donor and the acceptor. Conversely, protonation of the polymeric backbone using the strong acid, HTFSI, increases the electrical conductivity of P3EHT to a maximum of 4 × 10-3 S cm-1, 2 orders of magnitude higher than when a charge transfer dopant is used. The ability for the backbone of P3EHT to be protonated by an acid dopant, but not oxidized directly by F4-TCNQ, suggests that steric hindrance plays a significant role in the degree of charge transfer between dopant and polymer, even when the driving force for charge transfer is sufficient.
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Affiliation(s)
- Elayne M. Thomas
- Materials Department, University of California, Santa Barbara, California 93106, United States
| | - Emily C. Davidson
- Department of Chemical Engineering, University of California, Santa Barbara, California 93106, United States
| | - Reika Katsumata
- Department of Chemical Engineering, University of California, Santa Barbara, California 93106, United States
| | - Rachel A. Segalman
- Materials Department, University of California, Santa Barbara, California 93106, United States
- Department of Chemical Engineering, University of California, Santa Barbara, California 93106, United States
| | - Michael L. Chabinyc
- Materials Department, University of California, Santa Barbara, California 93106, United States
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39
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Usman R, Khan A, Sun H, Wang M. Study of charge transfer interaction modes in the mixed Donor-Acceptor cocrystals of pyrene derivatives and TCNQ: A combined structural, thermal, spectroscopic, and hirshfeld surfaces analysis. J SOLID STATE CHEM 2018. [DOI: 10.1016/j.jssc.2018.07.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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40
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Yamauchi T, Shibata Y, Aki T, Yoshimura A, Yao M, Misaki Y. Synthesis and Properties of [3]Dendralenes with Redox-active 1,3-Dithiol-2-ylidenes and Dicyanomethylidene and Application to Rechargeable Batteries. CHEM LETT 2018. [DOI: 10.1246/cl.180496] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Tomokazu Yamauchi
- Department of Applied Chemistry, Graduate School of Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
| | - Yuichi Shibata
- Department of Applied Chemistry, Graduate School of Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
| | - Tatsuro Aki
- Department of Applied Chemistry, Graduate School of Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
| | - Aya Yoshimura
- Department of Applied Chemistry, Graduate School of Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
| | - Masaru Yao
- Research Institute of Electrochemical Energy, National Institute of Advanced Industrial Science and Technology (AIST), 1-8-31 Midorigaoka, Ikeda, Osaka 563-8577, Japan
| | - Yohji Misaki
- Department of Applied Chemistry, Graduate School of Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
- Research Unit for Power Generation and Storage Materials, and Research Unit for Development of Organic Superconductors, Ehime University, Matsuyama, Ehime 790-8577, Japan
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41
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Schneider C, Ukaj D, Koerver R, Talin AA, Kieslich G, Pujari SP, Zuilhof H, Janek J, Allendorf MD, Fischer RA. High electrical conductivity and high porosity in a Guest@MOF material: evidence of TCNQ ordering within Cu 3BTC 2 micropores. Chem Sci 2018; 9:7405-7412. [PMID: 30542544 PMCID: PMC6237122 DOI: 10.1039/c8sc02471e] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 08/07/2018] [Indexed: 12/26/2022] Open
Abstract
The host–guest system TCNQ@Cu3BTC2 is a striking example of how semiconductivity can be introduced by guest incorporation in an otherwise insulating parent material.
The host–guest system TCNQ@Cu3BTC2 (TCNQ = 7,7,8,8-tetracyanoquinodimethane, BTC = 1,3,5-benzenetricarboxylate) is a striking example of how semiconductivity can be introduced by guest incorporation in an otherwise insulating parent material. Exhibiting both microporosity and semiconducting behavior such materials offer exciting opportunities as next-generation sensor materials. Here, we apply a solvent-free vapor phase loading under rigorous exclusion of moisture, obtaining a series of the general formula xTCNQ@Cu3BTC2 (0 ≤ x ≤ 1.0). By using powder X-ray diffraction, infrared and X-ray absorption spectroscopy together with scanning electron microscopy and porosimetry, we provide the first structural evidence for a systematic preferential arrangement of TCNQ along the (111) lattice plane and the bridging coordination motif to two neighbouring Cu-paddlewheels, as was predicted by theory. For 1.0TCNQ@Cu3BTC2 we find a specific electrical conductivity of up to 1.5 × 10–4 S cm–1 whilst maintaining a high BET surface area of 573.7 m2 g–1. These values are unmatched by MOFs with equally high electrical conductivity, making the material attractive for applications such as super capacitors and chemiresistors. Our results represent the crucial missing link needed to firmly establish the structure–property relationship revealed in TCNQ@Cu3BTC2, thereby creating a sound basis for using this as a design principle for electrically conducting MOFs.
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Affiliation(s)
- Christian Schneider
- Department of Chemistry , Technical University Munich , Lichtenbergstrasse 4 , 85748 Garching , Germany .
| | - Dardan Ukaj
- Department of Chemistry , Technical University Munich , Lichtenbergstrasse 4 , 85748 Garching , Germany .
| | - Raimund Koerver
- Institute of Physical Chemistry , Center for Materials Research (ZFM) , Justus-Liebig-University Giessen , Heinrich-Buff-Ring 17 , 35392 Giessen , Germany
| | - A Alec Talin
- Sandia National Laboratories , Livermore , CA 94551 , USA .
| | - Gregor Kieslich
- Department of Chemistry , Technical University Munich , Lichtenbergstrasse 4 , 85748 Garching , Germany .
| | - Sidharam P Pujari
- Laboratory of Organic Chemistry , Wageningen University & Research , Stippeneng 4 , 6708 WE Wageningen , The Netherlands
| | - Han Zuilhof
- Laboratory of Organic Chemistry , Wageningen University & Research , Stippeneng 4 , 6708 WE Wageningen , The Netherlands.,School of Pharmaceutical Sciences and Technology , Tianjin University , 92 Weijin Road , Tianjin , P. R. China
| | - Jürgen Janek
- Institute of Physical Chemistry , Center for Materials Research (ZFM) , Justus-Liebig-University Giessen , Heinrich-Buff-Ring 17 , 35392 Giessen , Germany
| | | | - Roland A Fischer
- Department of Chemistry , Technical University Munich , Lichtenbergstrasse 4 , 85748 Garching , Germany .
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42
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Kazantsev RV, Dannenhoffer A, Aytun T, Harutyunyan B, Fairfield DJ, Bedzyk MJ, Stupp SI. Molecular Control of Internal Crystallization and Photocatalytic Function in Supramolecular Nanostructures. Chem 2018; 4:1596-1608. [PMID: 30740552 DOI: 10.1016/j.chempr.2018.04.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Supramolecular light-absorbing nanostructures are useful building blocks for the design of next-generation artificial photosynthetic systems. Development of such systems requires a detailed understanding of how molecular packing influences the material's optoelectronic properties. We describe a series of crystalline supramolecular nanostructures in which the substituents on their monomeric units strongly affects morphology, ordering kinetics, and exciton behavior. By designing constitutionally-isomeric perylene monoimide (PMI) amphiphiles, the effect of side chain sterics on nanostructure crystallization was studied. Molecules with short amine linked alkyl-tails rapidly crystallize upon dissolution in water, while bulkier tails require the addition of salt to screen electrostatic repulsion and annealing to drive crystallization. A PMI monomer bearing a 3-pentylamine tail was found to possess a unique structure that results in strongly red-shifted absorbance, indicative of charge-transfer exciton formation. This particular supramolecular structure was found to have an enhanced ability to photosensitize a thiomolybdate, [(NH4)2Mo3S13], catalyst to generate hydrogen gas.
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Affiliation(s)
- Roman V Kazantsev
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA.,Argonne Northwestern Solar Energy Research (ANSER) Center, Northwestern University, Evanston, IL 60208, USA
| | - Adam Dannenhoffer
- Department of Materials Science and Engineering, Evanston, IL 60208, USA
| | - Taner Aytun
- Department of Materials Science and Engineering, Evanston, IL 60208, USA
| | - Boris Harutyunyan
- Argonne Northwestern Solar Energy Research (ANSER) Center, Northwestern University, Evanston, IL 60208, USA.,Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, USA
| | - Daniel J Fairfield
- Department of Materials Science and Engineering, Evanston, IL 60208, USA
| | - Michael J Bedzyk
- Department of Materials Science and Engineering, Evanston, IL 60208, USA.,Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, USA
| | - Samuel I Stupp
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA.,Argonne Northwestern Solar Energy Research (ANSER) Center, Northwestern University, Evanston, IL 60208, USA.,Department of Materials Science and Engineering, Evanston, IL 60208, USA.,Department of Medicine, Northwestern University, Chicago, IL 60611, USA.,Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA.,Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA.,Lead Contact
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43
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Abrahams BF, Elliott RW, Hudson TA, Robson R, Sutton AL. X4TCNQ2− dianions: versatile building blocks for supramolecular systems. CrystEngComm 2018. [DOI: 10.1039/c8ce00413g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new synthetic approach has led to the incorporation of TCNQ and F4TCNQ dianions into a wide variety of structures.
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Affiliation(s)
| | | | | | - Richard Robson
- School of Chemistry
- University of Melbourne
- Parkville
- Australia
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44
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Belova V, Beyer P, Meister E, Linderl T, Halbich MU, Gerhard M, Schmidt S, Zechel T, Meisel T, Generalov AV, Anselmo AS, Scholz R, Konovalov O, Gerlach A, Koch M, Hinderhofer A, Opitz A, Brütting W, Schreiber F. Evidence for Anisotropic Electronic Coupling of Charge Transfer States in Weakly Interacting Organic Semiconductor Mixtures. J Am Chem Soc 2017; 139:8474-8486. [PMID: 28570061 DOI: 10.1021/jacs.7b01622] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
We present a comprehensive investigation of the charge-transfer (CT) effect in weakly interacting organic semiconductor mixtures. The donor-acceptor pair diindenoperylene (DIP) and N,N'-bis(2-ethylhexyl)-1,7-dicyanoperylene-3,4/9,10-bis(dicarboxyimide) (PDIR-CN2) has been chosen as a model system. A wide range of experimental methods was used in order to characterize the structural, optical, electronic, and device properties of the intermolecular interactions. By detailed analysis, we demonstrate that the partial CT in this weakly interacting mixture does not have a strong effect on the ground state and does not generate a hybrid orbital. We also find a strong CT transition in light absorption as well as in photo- and electroluminescence. By using different layer sequences and compositions, we are able to distinguish electronic coupling in-plane vs out-of-plane and, thus, characterize the anisotropy of the CT state. Finally, we discuss the impact of CT exciton generation on charge-carrier transport and on the efficiency of photovoltaic devices.
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Affiliation(s)
- Valentina Belova
- Institut für Angewandte Physik, Universität Tübingen , Tübingen 72076, Germany
| | - Paul Beyer
- Department of Physics, Humboldt-Universität zu Berlin , Berlin 10099, Germany
| | - Eduard Meister
- Institute of Physics, Experimental Physics IV, University of Augsburg , Augsburg 86135, Germany
| | - Theresa Linderl
- Institute of Physics, Experimental Physics IV, University of Augsburg , Augsburg 86135, Germany
| | - Marc-Uwe Halbich
- Faculty of Physics and Material Sciences Center, Philipps-Universität Marburg , Marburg 35037, Germany
| | - Marina Gerhard
- Faculty of Physics and Material Sciences Center, Philipps-Universität Marburg , Marburg 35037, Germany
| | - Stefan Schmidt
- Institute of Physics, Experimental Physics IV, University of Augsburg , Augsburg 86135, Germany
| | - Thomas Zechel
- Institute of Physics, Experimental Physics IV, University of Augsburg , Augsburg 86135, Germany
| | - Tino Meisel
- Department of Physics, Humboldt-Universität zu Berlin , Berlin 10099, Germany
| | | | - Ana Sofia Anselmo
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , Berlin 14109, Germany
| | - Reinhard Scholz
- Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP), Technische Universität Dresden , Dresden 01062, Germany
| | - Oleg Konovalov
- European Synchrotron Radiation Facility, Grenoble 38000, France
| | - Alexander Gerlach
- Institut für Angewandte Physik, Universität Tübingen , Tübingen 72076, Germany
| | - Martin Koch
- Faculty of Physics and Material Sciences Center, Philipps-Universität Marburg , Marburg 35037, Germany
| | | | - Andreas Opitz
- Department of Physics, Humboldt-Universität zu Berlin , Berlin 10099, Germany
| | - Wolfgang Brütting
- Institute of Physics, Experimental Physics IV, University of Augsburg , Augsburg 86135, Germany
| | - Frank Schreiber
- Institut für Angewandte Physik, Universität Tübingen , Tübingen 72076, Germany
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45
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Hu P, Li H, Li Y, Jiang H, Kloc C. Single-crystal growth, structures, charge transfer and transport properties of anthracene-F4TCNQ and tetracene-F4TCNQ charge-transfer compounds. CrystEngComm 2017. [DOI: 10.1039/c6ce02116f] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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46
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Qin Q, Mague JT, Moses KZ, Carnicom EM, Cava RJ. Structure and characterization of charge transfer complexes of benzo[1,2-b:3,4-b′:5,6-b′′]trithiophene [C3h-BTT]. CrystEngComm 2017. [DOI: 10.1039/c7ce01471f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Four charge-transfer complexes of C3h-BTT (2) with the organic acceptors TCNQ, F4TCNQ, chloranil, and fluoranil were prepared and crystallographically characterized.
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Affiliation(s)
- Qian Qin
- Department of Chemistry and Biochemistry
- Loyola University
- New Orleans
- USA
| | - Joel T. Mague
- Department of Chemistry
- Tulane University
- New Orleans
- USA
| | - Khadija Z. Moses
- Department of Chemistry and Biochemistry
- Loyola University
- New Orleans
- USA
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47
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Ren Y, Lee S, Bertke J, Gray DL, Moore JS. Synthesis and structures of 11,11,12,12-tetracyano-2,6-diiodo-9,10-anthraquinodimethane and its 2:1 cocrystals with anthracene, pyrene and tetrathiafulvalene. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2016; 72:923-931. [PMID: 27918292 DOI: 10.1107/s2053229616016387] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Accepted: 10/14/2016] [Indexed: 11/10/2022]
Abstract
Radical salts and charge-transfer complexes (CTCs) containing tetracyanoquinodimethane (TCNQ) display electrical conductivity, which has led to the development of many TCNQ derivatives with enhanced electron-accepting properties that are applicable toward organic electronics. To expand the family of TCNQ derivatives, we report the synthesis and structures of 11,11,12,12-tetracyano-2,6-diiodo-9,10-anthraquinodimethane (abbreviated as DITCAQ), C20H6I2N4, and its charge-transfer complexes with various electron donors, namely DITCAQ-anthracene (2/1), C20H6I2N4·0.5C14H10, (I), DITCAQ-pyrene (2/1), C20H6I2N4·0.5C16H10, (II), and DITCAQ-tetrathiafulvalene (2/1), C20H6I2N4·0.5C6H4S4, (III). The molecular structure of DITCAQ consists of a 2,6-diiodo-9,10-dihydroanthracene moiety with two malononitrile substituents. DITCAQ possesses a saddle shape, since the malononitrile groups bend significantly up out of the plane of the central ring and the two benzene rings bend down out of the same plane. π-π interactions between DITCAQ and the electron-donor molecules control the degree of charge transfer in cocrystals (I), (II), and (III), which is reflected in both the dihedral angles between the terminal benzene ring and the central ring on the DITCAQ motifs, and their corresponding IR spectra.
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Affiliation(s)
- Yi Ren
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 S. Mathews Ave, Urbana, IL 61801, USA
| | - Semin Lee
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, 405 N. Mathews Ave., Urbana, IL 61801, USA
| | - Jeffery Bertke
- Department of Chemistry, Georgetown University, 146 Regents Hall, Washington, DC 20057, USA
| | - Danielle L Gray
- School of Chemical Sciences, University of Illinois at Urbana-Champaign, 505 S. Mathews Ave, Box 59-1, Urbana, IL 61801, USA
| | - Jeffrey S Moore
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 S. Mathews Ave, Urbana, IL 61801, USA
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48
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Goetz KP, Tsutsumi J, Pookpanratana S, Chen J, Corbin NS, Behera RK, Coropceanu V, Richter CA, Hacker CA, Hasegawa T, Jurchescu OD. Polymorphism in the 1:1 Charge-Transfer Complex DBTTF-TCNQ and Its Effects on Optical and Electronic Properties. ADVANCED ELECTRONIC MATERIALS 2016; 2:1600203. [PMID: 29387522 PMCID: PMC5788010 DOI: 10.1002/aelm.201600203] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The organic charge-transfer (CT) complex dibenzotetrathiafulvalene - 7,7,8,8-tetracyanoquinodimethane (DBTTF-TCNQ) is found to crystallize in two polymorphs when grown by physical vapor transport: the known α-polymorph and a new structure, the β-polymorph. Structural and elemental analysis via selected area electron diffraction (SAED), X-ray photoelectron spectroscopy (XPS), and polarized IR spectroscopy reveal that the complexes have the same stoichiometry with a 1:1 donor:acceptor ratio, but exhibit unique unit cells. The structural variations result in significant differences in the optoelectronic properties of the crystals, as observed in our experiments and electronic-structure calculations. Raman spectroscopy shows that the α-polymorph has a degree of charge transfer of about 0.5e, while the β-polymorph is nearly neutral. Organic field-effect transistors fabricated on these crystals reveal that in the same device structure both polymorphs show ambipolar charge transport, but the α-polymorph exhibits electron-dominant transport while the β-polymorph is hole-dominant. Together, these measurements imply that the transport features result from differing donor-acceptor overlap and consequential varying in frontier molecular orbital mixing, as suggested theoretically for charge-transfer complexes.
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Affiliation(s)
- Katelyn P Goetz
- Department of Physics, Wake Forest University, Winston Salem, NC 27109, USA
| | - Jun'ya Tsutsumi
- Flexible Electronics Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8562, Japan
| | - Sujitra Pookpanratana
- Engineering Physics Division, National Institute of Standards and Technology (NIST), Gaithersburg, Maryland 20899-1070, USA
| | - Jihua Chen
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 38831, USA
| | - Nathan S Corbin
- School of Chemistry and Biochemistry and Center for Organic Photonics and Electronics Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - Rakesh K Behera
- School of Chemistry and Biochemistry and Center for Organic Photonics and Electronics Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - Veaceslav Coropceanu
- School of Chemistry and Biochemistry and Center for Organic Photonics and Electronics Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - Curt A Richter
- Engineering Physics Division, National Institute of Standards and Technology (NIST), Gaithersburg, Maryland 20899-1070, USA
| | - Christina A Hacker
- Engineering Physics Division, National Institute of Standards and Technology (NIST), Gaithersburg, Maryland 20899-1070, USA
| | - Tatsuo Hasegawa
- Flexible Electronics Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8562, Japan
| | - Oana D Jurchescu
- Department of Physics, Wake Forest University, Winston Salem, NC 27109, USA
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49
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Ning GH, Tian B, Tan LM, Ding Z, Herng TS, Ding J, Loh KP. Networked Spin Cages: Tunable Magnetism and Lithium Ion Storage via Modulation of Spin-Electron Interactions. Inorg Chem 2016; 55:9892-9897. [DOI: 10.1021/acs.inorgchem.6b01740] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Guo-Hong Ning
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Bingbing Tian
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
- SZU-NUS Collaborative Innovation Center for Optoelectronic Science & Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Li-Min Tan
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Zijing Ding
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
- SZU-NUS Collaborative Innovation Center for Optoelectronic Science & Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Tun Seng Herng
- Department of Materials Science & Engineering, Faculty of Engineering, National University of Singapore, 7 Engineering Drive 1, Singapore 117574, Singapore
| | - Jun Ding
- Department of Materials Science & Engineering, Faculty of Engineering, National University of Singapore, 7 Engineering Drive 1, Singapore 117574, Singapore
| | - Kian Ping Loh
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
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50
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Boumedjout M, Bendjeddou A, Abbaz T, Kaboub L, Gouasmia A, Villemin D. New materials derivatives of tetrathiapentalene functionalized by amide groups: Synthesis, characterization, and electrical study. PHOSPHORUS SULFUR 2016. [DOI: 10.1080/10426507.2015.1114485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Meriam Boumedjout
- Laboratory of Organic Materials and Heterochemistry, University of Tebessa, Tebessa, Algeria
| | - Amel Bendjeddou
- Laboratory of Aquatic and Terrestrial Ecosystems, University of Souk Ahras, Souk Ahras, Algeria
| | - Tahar Abbaz
- Laboratory of Organic Materials and Heterochemistry, University of Tebessa, Tebessa, Algeria
- Laboratory of Aquatic and Terrestrial Ecosystems, University of Souk Ahras, Souk Ahras, Algeria
| | - Lakhmici Kaboub
- Laboratory of Organic Materials and Heterochemistry, University of Tebessa, Tebessa, Algeria
| | - Abdelkrim Gouasmia
- Laboratory of Organic Materials and Heterochemistry, University of Tebessa, Tebessa, Algeria
| | - Didier Villemin
- Laboratory of Molecular and Thio-Organic Chemistry, University of Caen, Caen, France
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