1
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Hauk P, Mazan V, Gallou F, Wencel-Delord J. Micellar catalysis: a green solution to enable undirected and mild C-H activation of (oligo)thiophenes at the challenging β-position. Chem Sci 2023; 14:12049-12055. [PMID: 37969587 PMCID: PMC10631230 DOI: 10.1039/d3sc03708h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 10/04/2023] [Indexed: 11/17/2023] Open
Abstract
The unexpected potential of micellar medium to achieve challenging β-selective direct arylation of (oligo)thiophenes is reported. Thanks to the use of a water/surfactant solution in combination with natural feedstock-derived undecanoic acid as an additive, this high-yielding C-H coupling could be performed regioselectively at room temperature.
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Affiliation(s)
- Pascal Hauk
- Laboratoire d'Innovation Moléculaire et Applications (UMR CNRS 7042), Université de Strasbourg, Université de Haute Alsace, ECPM 67087 Strasbourg France
| | - Valérie Mazan
- Laboratoire d'Innovation Moléculaire et Applications (UMR CNRS 7042), Université de Strasbourg, Université de Haute Alsace, ECPM 67087 Strasbourg France
| | - Fabrice Gallou
- Chemical & Analytical Development, Novartis Pharma AG 4056 Basel Switzerland
| | - Joanna Wencel-Delord
- Laboratoire d'Innovation Moléculaire et Applications (UMR CNRS 7042), Université de Strasbourg, Université de Haute Alsace, ECPM 67087 Strasbourg France
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2
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Kubota K, Kondo K, Seo T, Jin M, Ito H. Solid-state mechanochemical cross-coupling of insoluble substrates into insoluble products by removable solubilizing silyl groups: uniform synthesis of nonsubstituted linear oligothiophenes. RSC Adv 2023; 13:28652-28657. [PMID: 37780729 PMCID: PMC10540273 DOI: 10.1039/d3ra05571j] [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: 08/16/2023] [Accepted: 09/22/2023] [Indexed: 10/03/2023] Open
Abstract
Conventional solution-based organic reactions that involve insoluble substrates are challenging and inefficient. Furthermore, even if the reaction is successful, the corresponding products are insoluble in most cases, making their isolation and subsequent transformations difficult. Hence, the conversion of insoluble compounds into insoluble products remains a challenge in practical synthetic chemistry. In this study, we showcase a potential solution to address these solubility issues by combining a mechanochemical cross-coupling approach with removable solubilizing silyl groups. Our strategy involves solid-state Suzuki-Miyaura cross-coupling reactions between organoboron nucleophiles bearing a silyl group with long alkyl chains and insoluble polyaromatic halides. The silyl group on the nucleophile can act as a solubilizing group that enables product isolation via silica gel column chromatography and can be easily removed by the addition of fluoride anions to form the desired insoluble coupling products with sufficient purity. Furthermore, we demonstrate that after aromatic electrophilic bromination of the desilylated products, sequential solid-state cross-coupling of the obtained insoluble brominated substrates, followed by desilylation, afforded further π-extended functional molecules. Using this conceptually new protocol, we achieved the first uniform synthesis of the longest nonsubstituted linear insoluble 9-mer oligothiophene.
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Affiliation(s)
- Koji Kubota
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University Sapporo Hokkaido Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University Sapporo Hokkaido Japan
| | - Keisuke Kondo
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University Sapporo Hokkaido Japan
| | - Tamae Seo
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University Sapporo Hokkaido Japan
| | - Mingoo Jin
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University Sapporo Hokkaido Japan
| | - Hajime Ito
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University Sapporo Hokkaido Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University Sapporo Hokkaido Japan
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3
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Arche PDE, Chatterjee S, Talukder MM, Miller JT, Cue JMO, Udamulle Gedara CM, Lord RL, Biewer MC, Cisneros GA, Stefan MC. Regioselective Direct C-H Bond Heteroarylation of Thiazoles Enabled by an Iminopyridine-Based α-Diimine Nickel(II) Complex Evaluated by DFT Studies. J Org Chem 2023; 88:12319-12328. [PMID: 37603582 DOI: 10.1021/acs.joc.3c01021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2023]
Abstract
Direct C-H bond arylation is a highly effective method for synthesizing arylated heteroaromatics. This method reduces the number of synthetic steps and minimizes the formation of impurities. We report an air- and moisture-stable iminopyridine-based α-diimine nickel(II) complex for direct C5-H bond arylation of thiazole derivatives. Under a low catalyst loading and performing the reactions at lower temperatures (80 °C) under aerobic conditions, we produced mono- and diarylated thiazole units. Competition experiments and density functional theory calculations revealed that the mechanism of C-H activation in 4-methylthiazole involves an electrophilic aromatic substitution.
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Affiliation(s)
- Phillip Damien E Arche
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Shubham Chatterjee
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Md Muktadir Talukder
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Justin T Miller
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - John Michael O Cue
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Chinthaka M Udamulle Gedara
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Richard L Lord
- Department of Chemistry, Grand Valley State University, Allendale, Michigan 49401, United States
| | - Michael C Biewer
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - G Andrés Cisneros
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson, Texas 75080, United States
- Department of Physics, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Mihaela C Stefan
- Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson, Texas 75080, United States
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4
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Abstract
Organic conjugated polymers have been pivotal in the development of organic electronics in applications such as in organic field effect transistors and photovoltaics. In these applications, the electronic structures of the polymers change by the gain or loss of charge. In this work, the visualization of charge delocalization in oligomeric and polymeric systems by range-separated density functional theory calculations reveals an efficient method of determining the polymer limit and polaron delocalization lengths of conjugated systems. Methods of displaying these data and the important computational details of the calculations are explored. These calculations provide researchers information about intrachain charge transport, donor-acceptor characteristics, and a method of validating that the computational model structures are indeed representative of the polymer and not just small molecules. Contributions from differing co-monomers to the polymer properties can be assessed through plotting the charge distributions along the polymer backbone. Visualization of polaron (de)localization can guide future polymer design, e.g., by placement of solubilizing chains to aid interchain interactions at polymer sections bearing greater polaron localization, or by minimizing charge accumulation at potentially reactive monomer units.
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Affiliation(s)
- Karl J Thorley
- Center for Applied Energy Research, University of Kentucky, Lexington, Kentucky 40511, United States
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5
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Nipate AB, Rajeswara Rao M. Solid-state red-emissive (cyano)vinylene heteroaromatics via Pd-catalysed C-H homocoupling. Org Biomol Chem 2023; 21:4123-4129. [PMID: 37129043 DOI: 10.1039/d3ob00560g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Thiophene-based π-conjugated systems are important materials for organic electronics; thus, their synthesis is of topical interest. We report fluorescent thiophene/furan-based vinylene and cyanovinylene systems via Pd-catalysed homocoupling [Pd(OAc)2, pivalic acid, KOAc, DMAc, 140 °C]. The methodology is versatile and allows the development of a variety of π-conjugated systems without the need for pre-functionalized building units. The reaction tolerates electron-rich, electron-deficient and large π-conjugated substrates. The developed compounds absorb in the visible region (400-515 nm) and emit green to orange fluorescence in the solution state (510-600 nm). Most importantly, the compounds exhibit strong aggregation-induced emission (AIE) in the NIR region (λem = 650 nm), with quantum yields reaching up to 10%. Steric hindrance imparted by vinylene/cyanovinylene units is responsible for the strong solid-state luminescence. DFT-optimized structures reveal an apparent twist of 20-40° in the molecular backbone of the compounds, supporting the AIE behaviour of the compounds.
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Affiliation(s)
- Atul B Nipate
- Department of Chemistry, IIT Dharwad, Dharwad-580011, Karnataka, India.
| | - M Rajeswara Rao
- Department of Chemistry, IIT Dharwad, Dharwad-580011, Karnataka, India.
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6
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Bold K, Stolte M, Shoyama K, Krause A, Schmiedel A, Holzapfel M, Lambert C, Würthner F. Macrocyclic Donor‐Acceptor Dyads Composed of Oligothiophene Half‐Cycles and Perylene Bisimides. Chemistry 2022; 28:e202200355. [PMID: 35302692 PMCID: PMC9323445 DOI: 10.1002/chem.202200355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Indexed: 11/17/2022]
Abstract
A series of donor‐acceptor (D−A) macrocyclic dyads consisting of an electron‐poor perylene bisimide (PBI) π‐scaffold bridged with electron‐rich α‐oligothiophenes bearing four, five, six and seven thiophene units between the two phenyl‐imide substituents has been synthesized and characterized by steady‐state UV/Vis absorption and fluorescence spectroscopy, cyclic and differential pulse voltammetry as well as transient absorption spectroscopy. Tying the oligothiophene strands in a conformationally fixed macrocyclic arrangement leads to a more rigid π‐scaffold with vibronic fine structure in the respective absorption spectra. Electrochemical analysis disclosed charged state properties in solution which are strongly dependent on the degree of rigidification within the individual macrocycle. Investigation of the excited state dynamics revealed an oligothiophene bridge size‐dependent fast charge transfer process for the macrocyclic dyads upon PBI subunit excitation.
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Affiliation(s)
- Kevin Bold
- Institut für Organische Chemie Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Matthias Stolte
- Institut für Organische Chemie Universität Würzburg Am Hubland 97074 Würzburg Germany
- Center for Nanosystems Chemistry (CNC) Universität Würzburg Theodor-Boveri-Weg 97074 Würzburg Germany
| | - Kazutaka Shoyama
- Institut für Organische Chemie Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Ana‐Maria Krause
- Center for Nanosystems Chemistry (CNC) Universität Würzburg Theodor-Boveri-Weg 97074 Würzburg Germany
| | - Alexander Schmiedel
- Institut für Organische Chemie Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Marco Holzapfel
- Institut für Organische Chemie Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Christoph Lambert
- Institut für Organische Chemie Universität Würzburg Am Hubland 97074 Würzburg Germany
- Center for Nanosystems Chemistry (CNC) Universität Würzburg Theodor-Boveri-Weg 97074 Würzburg Germany
| | - Frank Würthner
- Institut für Organische Chemie Universität Würzburg Am Hubland 97074 Würzburg Germany
- Center for Nanosystems Chemistry (CNC) Universität Würzburg Theodor-Boveri-Weg 97074 Würzburg Germany
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7
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Schneider P, Verloh F, Dürr M. Cluster-Induced Desorption/Ionization of Polystyrene: Desorption Mechanism and Effect of Polymer Chain Length on Desorption Probability. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2022; 33:832-839. [PMID: 35426303 DOI: 10.1021/jasms.2c00021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Soft cluster-induced desorption/ionization of polystyrene oligomers was investigated with respect to application in mass spectrometry. Clear peak progressions corresponding to intact polystyrene molecules were observed in the mass spectra, and no fragmentation was detected; efficient desorption was deduced from quartz crystal microbalance measurements. Molecular dynamics (MD) simulations of the process revealed that even in the case of the nonpolar polystyrene molecules cluster-induced desorption proceeds via dissolvation in the polar clusters. Experimentally, a significantly lower desorption efficiency was observed for polystyrene molecules with larger chain length. Taking into account MD simulations and further experiments with mixed samples consisting of long- and short-chain polystyrene oligomers, the reduced desorption efficiency for longer chain polystyrene molecules was attributed to a stronger entanglement of the larger polystyrene molecules.
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Affiliation(s)
- Pascal Schneider
- Institut für Angewandte Physik and Zentrum für Materialforschung, Justus-Liebig-Universität Giessen, Heinrich-Buff-Ring 16, D-35392 Giessen, Germany
| | - Felix Verloh
- Institut für Angewandte Physik and Zentrum für Materialforschung, Justus-Liebig-Universität Giessen, Heinrich-Buff-Ring 16, D-35392 Giessen, Germany
| | - Michael Dürr
- Institut für Angewandte Physik and Zentrum für Materialforschung, Justus-Liebig-Universität Giessen, Heinrich-Buff-Ring 16, D-35392 Giessen, Germany
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8
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Peng X, Meng T, Wang L, Cheng L, Zhai W, Deng K, Ma CQ, Zeng Q. Self-assembled nanostructures of a series of linear oligothiophene derivatives adsorbed on surfaces. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.05.082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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9
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Gao Y, Feng C, Seo T, Kubota K, Ito H. Efficient access to materials-oriented aromatic alkynes via the mechanochemical Sonogashira coupling of solid aryl halides with large polycyclic conjugated systems. Chem Sci 2022; 13:430-438. [PMID: 35126975 PMCID: PMC8729817 DOI: 10.1039/d1sc05257h] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 12/07/2021] [Indexed: 01/23/2023] Open
Abstract
Sonogashira coupling represents an indispensable tool for the preparation of organic materials that contain C(sp)-C(sp2) bonds. Improving the efficiency and generality of this methodology has long been an important research subject in materials science. Here, we show that a high-temperature ball-milling technique enables the highly efficient palladium-catalyzed Sonogashira coupling of solid aryl halides that bear large polyaromatic structures including sparingly soluble substrates and unactivated aryl chlorides. In fact, this new protocol provides various materials-oriented polyaromatic alkynes in excellent yield within short reaction times in the absence of bulk reaction solvents. Notably, we synthesized a new luminescent material via the mechanochemical Sonogashira coupling of poorly soluble Vat Red 1 in a much higher yield compared to those obtained using solution-based conditions. The utility of this method was further demonstrated by the rapid synthesis of a fluorescent metal-organic framework (MOF) precursor via two sequential mechanochemical Sonogashira cross-coupling reactions. The present study illustrates the great potential of Sonogashira coupling using ball milling for the preparation of materials-oriented alkynes and for the discovery of novel functional materials.
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Affiliation(s)
- Yunpeng Gao
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University Sapporo Hokkaido Japan
| | - Chi Feng
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University Sapporo Hokkaido Japan
| | - Tamae Seo
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University Sapporo Hokkaido Japan
| | - Koji Kubota
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University Sapporo Hokkaido Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University Sapporo Hokkaido Japan
| | - Hajime Ito
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University Sapporo Hokkaido Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University Sapporo Hokkaido Japan
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10
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O'Connell CE, Sabury S, Jenkins JE, Collier GS, Sumpter BG, Long BK, Kilbey SM. Highly fluorescent purine-containing conjugated copolymers with tailored optoelectronic properties. Polym Chem 2022. [DOI: 10.1039/d2py00545j] [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
Conjugated copolymers containing electron donor and acceptor units in their main chain have emerged as promising materials for organic electronic devices due to their tunable optoelectronic properties.
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Affiliation(s)
- C. Elizabeth O'Connell
- Department of Chemistry, University of Tennessee – Knoxville, Knoxville, Tennessee 37996, USA
| | - Sina Sabury
- Department of Chemistry, University of Tennessee – Knoxville, Knoxville, Tennessee 37996, USA
| | - J. Elias Jenkins
- Department of Chemical and Biomolecular Engineering, University of Tennessee – Knoxville, Knoxville, Tennessee 37996, USA
| | - Graham S. Collier
- Department of Chemistry and Biochemistry, Kennesaw State University, Kennesaw, GA, 30144, USA
| | - Bobby G. Sumpter
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Brian K. Long
- Department of Chemistry, University of Tennessee – Knoxville, Knoxville, Tennessee 37996, USA
| | - S. Michael Kilbey
- Department of Chemistry, University of Tennessee – Knoxville, Knoxville, Tennessee 37996, USA
- Department of Chemical and Biomolecular Engineering, University of Tennessee – Knoxville, Knoxville, Tennessee 37996, USA
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11
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Pan L, Lee KM, Ke Z, Yeung YY. Application of a DIB/BBr 3 protocol in metal-free aryl coupling reactions. NEW J CHEM 2022. [DOI: 10.1039/d2nj04478a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Efficient and metal-free cross-coupling of arenes has been developed. Inexpensive hypervalent iodine reagents (HIRs) diacetoxyl iodobenzene and BBr3 were used to in situ generate a non-symmetrical HIR as the active species.
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Affiliation(s)
- Liangkun Pan
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China
| | - Ka-Mei Lee
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China
| | - Zhihai Ke
- School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, Shenzhen, Guangdong 518172, China
| | - Ying-Yeung Yeung
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China
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12
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Park S, Ryu S, Ho D, Chae W, Earmme T, Kim C, Seo S. Novel benzo[ b]thieno[2,3- d]thiophene derivatives with an additional alkyl-thiophene core: synthesis, characterization, and p-type thin film transistor performance. NEW J CHEM 2022. [DOI: 10.1039/d2nj01635d] [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
Newly synthesized benzo[b]thieno[2,3-d]thiophene derivatives were employed as active layers of organic field effect transistors, and these transistors showed decent electrical performance.
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Affiliation(s)
- Soyoon Park
- Department of Chemical and Biomolecular Engineering, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul 04107, Korea
| | - Soomin Ryu
- Department of Smart Green Technology Engineering, Pukyong National University, Busan 48513, Korea
| | - Dongil Ho
- Department of Chemical and Biomolecular Engineering, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul 04107, Korea
| | - Wookil Chae
- Department of Chemical Engineering, Hongik University, 94 Wausan-ro, Mapo-gu, Seoul 04066, Republic of Korea
| | - Taeshik Earmme
- Department of Chemical Engineering, Hongik University, 94 Wausan-ro, Mapo-gu, Seoul 04066, Republic of Korea
| | - Choongik Kim
- Department of Chemical and Biomolecular Engineering, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul 04107, Korea
| | - SungYong Seo
- Department of Smart Green Technology Engineering, Pukyong National University, Busan 48513, Korea
- Department of Chemistry, Pukyong National University, Busan 48513, Korea
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13
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Xiang Y, Zhang J, Zheng S. Designing Potential Donor Materials Based on DRCN5T with Halogen Substitutions: A DFT/TDDFT Study. Int J Mol Sci 2021; 22:ijms222413498. [PMID: 34948295 PMCID: PMC8704226 DOI: 10.3390/ijms222413498] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 12/09/2021] [Accepted: 12/14/2021] [Indexed: 11/16/2022] Open
Abstract
Experimental researchers have found that the organic solar cell (OSC) based on DRCN5T (an oligothiophene) possesses excellent power conversion efficiency (PCE) of 10.1%. However, to date, there have been few studies about halogenation of DRCN5T, and its effects on photovoltaic properties of halogenated DRCN5T are still not clear. In the present work, we first perform benchmark calculations and effectively reproduce experimental results. Then, eight halogenated DRCN5T molecules are designed and investigated theoretically by using density functional theory (DFT) and time-dependent DFT. The dipole moments, frontier molecular orbital energies, absorption spectra, exciton binding energy (Eb), singlet–triplet energy gap (ΔEST), and electrostatic potential (ESP) of these molecules, and the estimated open circuit voltages (VOCs) of the OSCs with PC71BM as acceptor are presented. We find that (1) generally, halogen substitutions would increase VOC; (2) Eb rises with more fluorine substitutions, but for Cl and Br substitutions, Eb increases firstly and then drops; (3) ΔEST keeps increasing with more halogen substitutions; (4) except for Br substitutions, the averaged ESP arises along with more halogen substitutions; (5) the absorption strength of UV–Vis spectra of DRCN5T2F, DRCN5T4F, DRCN5T6F, and DRCN5T2Cl in the visible region is enhanced with respect to DRCN5T. Based on these results, overall, DRCN5T2Cl, DRCN5T4F, and DRCN5T6F may be promising donors.
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Affiliation(s)
- Yunjie Xiang
- School of Materials and Energy, Southwest University, Chongqing 400715, China;
- Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies, Southwest University, Chongqing 400715, China
- Correspondence: (Y.X.); (S.Z.)
| | - Jie Zhang
- School of Materials and Energy, Southwest University, Chongqing 400715, China;
- Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies, Southwest University, Chongqing 400715, China
| | - Shaohui Zheng
- School of Materials and Energy, Southwest University, Chongqing 400715, China;
- Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies, Southwest University, Chongqing 400715, China
- Correspondence: (Y.X.); (S.Z.)
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14
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Ji HY, Wang RY, Zhang BB, Ma Y, Song XN, Wang CK. Adsorption configurations of furan molecule on Si(100)-2×1 surface by X-ray photoelectron spectroscopy and near-edge X-ray absorption fine structure spectra. Mol Phys 2021. [DOI: 10.1080/00268976.2021.2011973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Huan-Yu Ji
- School of Physics and Electronics, Shandong Normal University, Jinan, Shandong, People's Republic of China
| | - Ruo-Yu Wang
- School of Physics and Electronics, Shandong Normal University, Jinan, Shandong, People's Republic of China
| | - Bing-Bing Zhang
- School of Physics and Electronics, Shandong Normal University, Jinan, Shandong, People's Republic of China
| | - Yong Ma
- School of Physics and Electronics, Shandong Normal University, Jinan, Shandong, People's Republic of China
| | - Xiu-Neng Song
- School of Physics and Electronics, Shandong Normal University, Jinan, Shandong, People's Republic of China
| | - Chuan-kui Wang
- School of Physics and Electronics, Shandong Normal University, Jinan, Shandong, People's Republic of China
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15
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Optical Spectra of Oligofurans: A Theoretical Approach to the Transition Energies, Reorganization Energies, and the Vibronic Activity. Molecules 2021; 26:molecules26237163. [PMID: 34885747 PMCID: PMC8659192 DOI: 10.3390/molecules26237163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/18/2021] [Accepted: 11/22/2021] [Indexed: 11/17/2022] Open
Abstract
There is experimental evidence of high vibronic activity that accompanies the allowed transition between the ground state and the lowest electronic singlet excited state of oligofurans that contain two, three, and four furan rings. The absorption and emission spectra of the three lowest oligofurans measured at liquid nitrogen temperature show distinct fine structures that are reproduced using the projection-based model of vibronic coupling (with Dushinsky rotation included) parameterized utilizing either Density Functional Theory (DFT, with several different exchange-correlation functionals) or ab initio (CC2) quantum chemistry calculations. Using as a reference the experimental data concerning the electronic absorption and fluorescence for the eight lowest oligofurans, we first analyzed the performance of the exchange-correlation functionals for the electronic transition energies and the reorganization energies. Subsequently, we used the best functionals alongside with the CC2 method to explore how the reorganization energies are distributed among the totally symmetric vibrations, identify the normal modes that dominate in the fine structures present in the absorption and emission bands, and trace their evolution with the increasing number of rings in the oligofuran series. Confrontation of the simulated spectra with the experiment allows for the verification of the performance of the selected DFT functionals and the CC2 method.
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16
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Delesma FA, Delgado-Venegas RI, Salahub DR, Del Campo JM, Pedroza-Montero JN, Calaminici P, Köster AM. Self-Consistent Auxiliary Density Perturbation Theory. J Chem Theory Comput 2021; 17:6934-6946. [PMID: 34709812 DOI: 10.1021/acs.jctc.1c00713] [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
The working equations for the extension of auxiliary density perturbation theory (ADPT) to hybrid functionals, employing the variational fitting of the Fock potential, are derived. The response equations in the resulting self-consistent ADPT (SC-ADPT) are solved iteratively with an adapted Eirola-Nevanlinna algorithm. As a result, a memory and CPU time efficient implementation of perturbation theory free of four-center electron repulsion integrals (ERIs) is obtained. Our validation calculations of SC-ADPT static and dynamic polarizabilities show quantitative agreement with corresponding coupled perturbed Hartree-Fock and Kohn-Sham results employing four-center ERIs. The comparison of SC-ADPT hybrid functional polarizabilities with coupled cluster reference calculations yield semiquantitative agreement. The presented systematic study of the dynamic polarizabilities of oligothiophenes shows that hybrid functionals can overcome the pathological misplacement of excitation poles by the local density and generalized gradient approximations. Good agreement with experimental dynamic polarizabilities for all studied oligothiophenes is achieved with range-separated hybrid functionals in the framework of SC-ADPT.
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Affiliation(s)
- Francisco A Delesma
- Departamento de Química, Cinvestav-IPN, Av. Instituto Politécnico Nacional 2508, Ciudad de México 07000, México.,Programa de Doctorado en Nanociencias y Nanotecnología, Cinvestav-IPN, Av. Instituto Politécnico Nacional 2508, Ciudad de México 07000, México
| | - Rogelio I Delgado-Venegas
- Department of Chemistry, Department of Physics and Astronomy CMS - Centre for Molecular Simulation, IQST - Institute for Quantum Science and Technology and Quantum Alberta, University of Calgary, 2500 University Drive N.W., Calgary, AB Canada T2N 1N4
| | - Dennis R Salahub
- Department of Chemistry, Department of Physics and Astronomy CMS - Centre for Molecular Simulation, IQST - Institute for Quantum Science and Technology and Quantum Alberta, University of Calgary, 2500 University Drive N.W., Calgary, AB Canada T2N 1N4
| | - Jorge M Del Campo
- Departamento de Física y Química Teórica, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, México
| | - Jesús N Pedroza-Montero
- Departamento de Química, Cinvestav-IPN, Av. Instituto Politécnico Nacional 2508, Ciudad de México 07000, México.,Programa de Doctorado en Nanociencias y Nanotecnología, Cinvestav-IPN, Av. Instituto Politécnico Nacional 2508, Ciudad de México 07000, México
| | - Patrizia Calaminici
- Departamento de Química, Cinvestav-IPN, Av. Instituto Politécnico Nacional 2508, Ciudad de México 07000, México.,Programa de Doctorado en Nanociencias y Nanotecnología, Cinvestav-IPN, Av. Instituto Politécnico Nacional 2508, Ciudad de México 07000, México
| | - Andreas M Köster
- Departamento de Química, Cinvestav-IPN, Av. Instituto Politécnico Nacional 2508, Ciudad de México 07000, México.,Programa de Doctorado en Nanociencias y Nanotecnología, Cinvestav-IPN, Av. Instituto Politécnico Nacional 2508, Ciudad de México 07000, México
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17
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Yang Z, Zhang Z, Xue C, Yang K, Gao R, Yu N, Ren Y. Excited-state engineering of oligothiophenes via phosphorus chemistry towards strong fluorescent materials. Phys Chem Chem Phys 2021; 23:24265-24272. [PMID: 34671795 DOI: 10.1039/d1cp03737d] [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
Due to efficient intersystem crossing (ISC), combined with efficient non-radiative processes of the triplet excited state, oligothiophenes generally exhibit very weak photoluminescence. Phosphorus (P)-bridged terthiophenes (P-terThs) and phosphorus (P)-bridged bithiophenes (P-biThs) were synthesized. The diverse and well-defined P-chemistry has been applied to fine tune the photophysical properties of these materials. The asymmetric electronic coupling between the P-center and terThs suppressed the electronic interactions of two terTh and biTh moieties in the ground state S0. Particularly, P-terThs and P-biThs having a positively charged P(+)-center induce pronounced asymmetric electronic environments on the two terThs and two biThs, respectively, which allows relaxation from the initial excited state via symmetry breaking charge transfer (SBCT) to give the charge separated state SSBCT. P-terThs and P-biThs having a positively charged P(+)-center exhibit stronger SBCT than others, which may result in a weaker ISC of oligothiophenes, and consequently lead to the photoluminescence quantum yields (PLQYs) being as high as 71% and 39%, respectively. The current study uncovered detailed insights on the effects of phosphorus chemistry on the SBCT of oligothiophenes and their resulting effects on the photophysical properties of P-bridged oligothiophenes, which have not been previously addressed in oligothiophenes.
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Affiliation(s)
- Zi Yang
- School of Physical Science and Technology, ShanghaiTech University, 201210 Shanghai, People's Republic of China. .,Shanghai Advanced Research Institute, Chinese Academy of Sciences, 201203 Shanghai, People's Republic of China.,University of Chinese Academy of Sciences, 100049 Beijing, People's Republic of China
| | - Zhikai Zhang
- School of Physical Science and Technology, ShanghaiTech University, 201210 Shanghai, People's Republic of China.
| | - Cece Xue
- School of Physical Science and Technology, ShanghaiTech University, 201210 Shanghai, People's Republic of China.
| | - Kai Yang
- School of Physical Science and Technology, ShanghaiTech University, 201210 Shanghai, People's Republic of China.
| | - Rong Gao
- School of Physical Science and Technology, ShanghaiTech University, 201210 Shanghai, People's Republic of China.
| | - Na Yu
- School of Physical Science and Technology, ShanghaiTech University, 201210 Shanghai, People's Republic of China.
| | - Yi Ren
- School of Physical Science and Technology, ShanghaiTech University, 201210 Shanghai, People's Republic of China. .,Shanghai Advanced Research Institute, Chinese Academy of Sciences, 201203 Shanghai, People's Republic of China.,University of Chinese Academy of Sciences, 100049 Beijing, People's Republic of China
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18
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Scapinello L, Grecchi S, Rossi S, Arduini F, Arnaboldi S, Penoni A, Cirilli R, Romana Mussini P, Benincori T. Modulating the Enantiodiscrimination Features of Inherently Chiral Selectors by Molecular Design: A HPLC and Voltammetry Study Case with Atropisomeric 2,2'-Biindole-Based Monomers and Oligomer Films. Chemistry 2021; 27:13190-13202. [PMID: 34170583 PMCID: PMC8518821 DOI: 10.1002/chem.202101170] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Indexed: 11/30/2022]
Abstract
A family of inherently chiral electroactive selectors based on the 2,2'-biindole atropisomeric scaffold, of easy synthesis and modulable functional properties, is studied in cascade in two enantioselection contexts. They are at first investigated as probes in enantioselective HPLC, studying molecular structure and temperature effects, and achieving very efficient semipreparative enantioseparation. The enantiomers thus obtained, of remarkable chiroptical features (optical rotation as well as circular dichroism), are successfully applied as selectors in chiral voltammetry in different media for discrimination of the enantiomers of chiral electroactive probes, either by conversion into enantiopure electroactive electrode surfaces by electrooligomerization on glassy carbon substrate (the two monomers with shorter alkyl chains), or as chiral additive in achiral ionic liquid (the monomer with longest alkyl chains). Discrimination is conveniently and reproducibly achieved in terms of significant potential differences for the two enantiomers, specularly inverting either probe or selector configuration. In one case successful discrimination is also observed with the two probe enantiomers concurrently present, either as racemate or with enantiomeric excesses, neatly accounted for by the peak current ratios.
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Affiliation(s)
- Luca Scapinello
- Dipartimento di Scienza e Alta TecnologiaUniversità degli Studi dell'InsubriaVia Valleggio 1122100ComoItaly
| | - Sara Grecchi
- Dipartimento di ChimicaUniversità degli Studi di MilanoVia Golgi 1920133MilanoItaly
| | - Sergio Rossi
- Dipartimento di ChimicaUniversità degli Studi di MilanoVia Golgi 1920133MilanoItaly
| | - Fabiana Arduini
- Dipartimento di Scienze e Tecnologie ChimicheUniversità di Roma Tor VergataVia della Ricerca Scientifica100133RomaItaly
| | - Serena Arnaboldi
- Dipartimento di ChimicaUniversità degli Studi di MilanoVia Golgi 1920133MilanoItaly
| | - Andrea Penoni
- Dipartimento di Scienza e Alta TecnologiaUniversità degli Studi dell'InsubriaVia Valleggio 1122100ComoItaly
| | - Roberto Cirilli
- Centro Nazionale per il Controllo e la Valutazione dei FarmaciIstituto Superiore di Sanità Viale Regina Elena 29900161RomaItaly
| | | | - Tiziana Benincori
- Dipartimento di Scienza e Alta TecnologiaUniversità degli Studi dell'InsubriaVia Valleggio 1122100ComoItaly
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19
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Cuesta V, Singhal R, de la Cruz P, Sharma GD, Langa F. Reducing Energy Loss in Organic Solar Cells by Changing the Central Metal in Metalloporphyrins. CHEMSUSCHEM 2021; 14:3494-3501. [PMID: 33274829 DOI: 10.1002/cssc.202002664] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 12/03/2020] [Indexed: 06/12/2023]
Abstract
The effect of central donor core on the properties of A-π-D-π-A donors, where D is a porphyrin macrocycle, cyclopenta[2,1-b:3,4-b']dithiophene is the π bridge, and A is a dicyanorhodanine terminal unit, was investigated for the fabrication of the organic solar cells (OSCs), along [6,6]-phenyl-C71-butyric acid methyl ester (PC71 BM) as electron acceptor. A new molecule consisting of Ni-porphyrin central donor core (VC9) showed deep HOMO energy level and OSCs based on optimized VC9:PC71 BM realized overall power conversion efficiency (PCE) of 10.66 % [short-circuit current density (JSC )=15.48 mA/cm2 , fill factor (FF)=0.65] with high open circuit voltage (VOC ) of 1.06 V and very low energy loss of 0.49 eV, whereas the Zn-porphyrin analogue VC8:PC71 BM showed PCE of 9.69 % with VOC of 0.89 V, JSC of 16.25 mA/cm2 and FF of 0.67. Although the OSCs based on VC8 showed higher JSC in comparison to VC9, originating from the broader absorption profile of VC8 that led to more exciton generation, the higher value of PCE of VC9 is owing to the higher VOC and reduced energy loss.
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Affiliation(s)
- Virginia Cuesta
- Department of inorganic, organic and biochemistry, Universidad de Castilla - La Mancha, Institute of Nanoscience, Nanotechnology and Molecular Materials (INAMOL), Campus de la Fábrica de Armas, Toledo, Spain
| | - Rahul Singhal
- Department of Physics, Malviya National Institute of Technology, JLN Marg, Jaipur (Raj.), 302017, India
| | - Pilar de la Cruz
- Department of inorganic, organic and biochemistry, Universidad de Castilla - La Mancha, Institute of Nanoscience, Nanotechnology and Molecular Materials (INAMOL), Campus de la Fábrica de Armas, Toledo, Spain
| | - Ganesh D Sharma
- Department of Physics, The LNM Institute of Information Technology, Deemed University, Rupa ki Nangal, Jamdoli, Jaipur (Raj.), 302031, India
| | - Fernando Langa
- Department of inorganic, organic and biochemistry, Universidad de Castilla - La Mancha, Institute of Nanoscience, Nanotechnology and Molecular Materials (INAMOL), Campus de la Fábrica de Armas, Toledo, Spain
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20
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Cantelli A, Malferrari M, Soldà A, Simonetti G, Forni S, Toscanella E, Mattioli EJ, Zerbetto F, Zanelli A, Di Giosia M, Zangoli M, Barbarella G, Rapino S, Di Maria F, Calvaresi M. Human Serum Albumin-Oligothiophene Bioconjugate: A Phototheranostic Platform for Localized Killing of Cancer Cells by Precise Light Activation. JACS AU 2021; 1:925-935. [PMID: 34467339 PMCID: PMC8395684 DOI: 10.1021/jacsau.1c00061] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Indexed: 05/05/2023]
Abstract
The electronic, optical, and redox properties of thiophene-based materials have made them pivotal in nanoscience and nanotechnology. However, the exploitation of oligothiophenes in photodynamic therapy is hindered by their intrinsic hydrophobicity that lowers their biocompatibility and availability in water environments. Here, we developed human serum albumin (HSA)-oligothiophene bioconjugates that afford the use of insoluble oligothiophenes in physiological environments. UV-vis and electrophoresis proved the conjugation of the oligothiophene sensitizers to the protein. The bioconjugate is water-soluble and biocompatible, does not have any "dark toxicity", and preserves HSA in the physiological monomeric form, as confirmed by dynamic light scattering and circular dichroism measurements. In contrast, upon irradiation with ultralow light doses, the bioconjugate efficiently produces reactive oxygen species (ROS) and leads to the complete eradication of cancer cells. Real-time monitoring of the photokilling activity of the HSA-oligothiophene bioconjugate shows that living cells "explode" upon irradiation. Photodependent and dose-dependent apoptosis is one of the primary mechanisms of cell death activated by bioconjugate irradiation. The bioconjugate is a novel theranostic platform able to generate ROS intracellularly and provide imaging through the fluorescence of the oligothiophene. It is also a real-time self-reporting system able to monitor the apoptotic process. The induced phototoxicity is strongly confined to the irradiated region, showing localized killing of cancer cells by precise light activation of the bioconjugate.
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Affiliation(s)
- Andrea Cantelli
- Dipartimento
di Chimica “Giacomo Ciamician, Alma Mater Studiorum, Università di Bologna, Via Francesco Selmi, 2, 40126 Bologna, Italy
| | - Marco Malferrari
- Dipartimento
di Chimica “Giacomo Ciamician, Alma Mater Studiorum, Università di Bologna, Via Francesco Selmi, 2, 40126 Bologna, Italy
| | - Alice Soldà
- Dipartimento
di Chimica “Giacomo Ciamician, Alma Mater Studiorum, Università di Bologna, Via Francesco Selmi, 2, 40126 Bologna, Italy
| | - Giorgia Simonetti
- IRCCS
Istituto Romagnolo per lo Studio dei Tumori (IRST) “Dino Amadori”, Via Piero Maroncelli, 40, 47014 Meldola, FC, Italy
| | - Sonny Forni
- Dipartimento
di Chimica “Giacomo Ciamician, Alma Mater Studiorum, Università di Bologna, Via Francesco Selmi, 2, 40126 Bologna, Italy
| | - Edoardo Toscanella
- Dipartimento
di Chimica “Giacomo Ciamician, Alma Mater Studiorum, Università di Bologna, Via Francesco Selmi, 2, 40126 Bologna, Italy
| | - Edoardo J. Mattioli
- Dipartimento
di Chimica “Giacomo Ciamician, Alma Mater Studiorum, Università di Bologna, Via Francesco Selmi, 2, 40126 Bologna, Italy
| | - Francesco Zerbetto
- Dipartimento
di Chimica “Giacomo Ciamician, Alma Mater Studiorum, Università di Bologna, Via Francesco Selmi, 2, 40126 Bologna, Italy
| | - Alberto Zanelli
- Istituto
per la Sintesi Organica e la Fotoreattività (ISOF), Consiglio Nazionale delle Ricerche, Via Piero Gobetti, 101, 40129 Bologna, Italy
| | - Matteo Di Giosia
- Dipartimento
di Chimica “Giacomo Ciamician, Alma Mater Studiorum, Università di Bologna, Via Francesco Selmi, 2, 40126 Bologna, Italy
| | - Mattia Zangoli
- Istituto
per la Sintesi Organica e la Fotoreattività (ISOF), Consiglio Nazionale delle Ricerche, Via Piero Gobetti, 101, 40129 Bologna, Italy
- Mediteknology
srl, Via Piero Gobetti,
101, 40129 Bologna, Italy
| | - Giovanna Barbarella
- Istituto
per la Sintesi Organica e la Fotoreattività (ISOF), Consiglio Nazionale delle Ricerche, Via Piero Gobetti, 101, 40129 Bologna, Italy
- Mediteknology
srl, Via Piero Gobetti,
101, 40129 Bologna, Italy
| | - Stefania Rapino
- Dipartimento
di Chimica “Giacomo Ciamician, Alma Mater Studiorum, Università di Bologna, Via Francesco Selmi, 2, 40126 Bologna, Italy
| | - Francesca Di Maria
- Istituto
per la Sintesi Organica e la Fotoreattività (ISOF), Consiglio Nazionale delle Ricerche, Via Piero Gobetti, 101, 40129 Bologna, Italy
- Mediteknology
srl, Via Piero Gobetti,
101, 40129 Bologna, Italy
| | - Matteo Calvaresi
- Dipartimento
di Chimica “Giacomo Ciamician, Alma Mater Studiorum, Università di Bologna, Via Francesco Selmi, 2, 40126 Bologna, Italy
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21
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Shiraishi Y, Matsumoto M, Ichikawa S, Tanaka S, Hirai T. Polythiophene-Doped Resorcinol-Formaldehyde Resin Photocatalysts for Solar-to-Hydrogen Peroxide Energy Conversion. J Am Chem Soc 2021; 143:12590-12599. [PMID: 34292725 DOI: 10.1021/jacs.1c04622] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The generation of hydrogen peroxide (H2O2) from water and dioxygen by sunlight-driven heterogeneous photocatalysis is a promising method for the artificial photosynthesis of a liquid solar fuel. We previously found that resorcinol-formaldehyde (RF) resin powders prepared by high-temperature hydrothermal synthesis act as highly active semiconductor photocatalysts for H2O2 generation. Herein, we report that RF resin powders doped with poly(3-hexylthiophene-2,5-diyl) (RF/P3HT) exhibit enhanced photocatalytic activities. The highly dispersed P3HT within the resin particles created charge transfer complexes with the conduction band of the resin via electron donation, facilitating efficient transfer of the photogenerated conduction band electrons through P3HT. This enhanced charge separation promoted efficient water oxidation and O2 reduction. The solar-to-chemical conversion efficiency for H2O2 generation on the RF/P3HT resin in water under simulated sunlight irradiation with atmospheric pressure of O2 was ∼1.0%, which is the highest efficiency reported for powder catalysts in artificial photosynthesis.
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Affiliation(s)
- Yasuhiro Shiraishi
- Research Center for Solar Energy Chemistry and Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan.,Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita 565-0871, Japan
| | - Masako Matsumoto
- Research Center for Solar Energy Chemistry and Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan
| | - Satoshi Ichikawa
- Research Center for Ultra-High Voltage Electron Microscopy, Osaka University, Ibaraki 567-0047, Japan
| | - Shunsuke Tanaka
- Department of Chemical, Energy, and Environmental Engineering, Kansai University, Suita 564-8680, Japan
| | - Takayuki Hirai
- Research Center for Solar Energy Chemistry and Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan.,Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita 565-0871, Japan
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22
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Soldano C. Engineering Dielectric Materials for High-Performance Organic Light Emitting Transistors (OLETs). MATERIALS (BASEL, SWITZERLAND) 2021; 14:3756. [PMID: 34279327 PMCID: PMC8269812 DOI: 10.3390/ma14133756] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/29/2021] [Accepted: 07/01/2021] [Indexed: 11/16/2022]
Abstract
Organic light emitting transistors (OLETs) represent a relatively new technology platform in the field of optoelectronics. An OLET is a device with a two-fold functionality since it behaves as a thin-film transistor and at the same time can generate light under appropriate bias conditions. This Review focuses mainly on one of the building blocks of such device, namely the gate dielectrics, and how it is possible to engineer it to improve device properties and performances. While many findings on gate dielectrics can be easily applied to organic light emitting transistors, we here concentrate on how this layer can be exploited and engineered as an active tool for light manipulation in this novel class of optoelectronic devices.
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Affiliation(s)
- Caterina Soldano
- Department of Electronics and Nanoengineering, School of Electrical Engineering, Aalto University, Tietotie 3, 02150 Espoo, Finland
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23
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A comprehensive investigation of structural features, electron delocalization, optoelectronic and anti-corrosion characteristics in furan oligomers by DFT/TDDFT method. Theor Chem Acc 2021. [DOI: 10.1007/s00214-021-02760-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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24
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Malacrida C, Scapinello L, Cirilli R, Grecchi S, Penoni A, Benincori T, Ludwigs S. In Situ Electrochemical Investigations of Inherently Chiral 2,2′‐Biindole Architectures with Oligothiophene Terminals. ChemElectroChem 2021. [DOI: 10.1002/celc.202100511] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Claudia Malacrida
- IPOC-Functional Polymers, Institute of Polymer Chemistry University of Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Luca Scapinello
- IPOC-Functional Polymers, Institute of Polymer Chemistry University of Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
- Dipartimento di Scienza e Alta Tecnologia Università degli Studi dell'Insubria Via Valleggio 11 22100 Como Italy
| | - Roberto Cirilli
- Centro Nazionale per il Controllo e la Valutazione dei Farmaci Istituto Superiore di Sanità Viale Regina Elena 299 00161 Roma Italy
| | - Sara Grecchi
- Dipartimento di Chimica Università degli Studi di Milano Via Golgi 19 20133 Milano Italy
| | - Andrea Penoni
- Dipartimento di Scienza e Alta Tecnologia Università degli Studi dell'Insubria Via Valleggio 11 22100 Como Italy
| | - Tiziana Benincori
- Dipartimento di Scienza e Alta Tecnologia Università degli Studi dell'Insubria Via Valleggio 11 22100 Como Italy
| | - Sabine Ludwigs
- IPOC-Functional Polymers, Institute of Polymer Chemistry University of Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
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25
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Dhiman A, Giribabu L, Trivedi R. π-Conjugated Materials Derived From Boron-Chalcogenophene Combination. A Brief Description of Synthetic Routes and Optoelectronic Applications. CHEM REC 2021; 21:1738-1770. [PMID: 33844422 DOI: 10.1002/tcr.202100039] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/19/2021] [Accepted: 03/29/2021] [Indexed: 12/12/2022]
Abstract
Functional materials composed of Boron-chalcogenophene conjugates have emerged as promising ensemble featuring commendable optoelectronic properties. This review describes the categories, synthetic routes and optoelectronic applications of a range of boron-chalcogenophene conjugates. Conjugation and linking of different types of tri- and tetra-coordinated boron moieties with chalcogenophenes have remained an important strategy for constructing a range of functional materials. Synthetic protocols have been devised to efficiently prepare such chemically robust conjugates, often exhibiting a myriad of photophysical properties, redox capabilities and also solid-state behaviors. Tin-boron and silicon-boron exchange protocols have been efficiently adapted to access these boron-chalcogenophenes. Few other commonly used methods namely, hydroboration of alkynes as well as electrophilic borylations are also mentioned. The chemical and electronic properties of such boron-chalcogenophene conjugates are directly influenced by the strong Lewis acid character of trivalent boranes which can further alter the intra- and inter- molecular Lewis acid-base interactions. Apart from the synthetic protocols, recent advances in the application of these boron-chalcogenophene conjugates towards analyte sensing, organic electronics, molecular switches and several other aspects will be discussed in this review.
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Affiliation(s)
- Ankita Dhiman
- Catalysis and Fine Chemicals Department, CSIR-Indian Institute of Chemical Technology, Hyderabad, Uppal Road, Tarnaka, Hyderabad,, 500007, Telangana, India
| | - Lingamallu Giribabu
- Polymers and Functional Materials Department, CSIR-Indian Institute of Chemical Technology, Hyderabad, Uppal Road, Tarnaka, Hyderabad, 500007, Telangana, India.,Professor (AcSIR), Academy of Scientific and Innovative Research, AcSIR Headquarters, CSIR-HRDC campus Sector 19, Kamala Nehru Nagar, Ghaziabad, U.P., 201 002, India
| | - Rajiv Trivedi
- Catalysis and Fine Chemicals Department, CSIR-Indian Institute of Chemical Technology, Hyderabad, Uppal Road, Tarnaka, Hyderabad,, 500007, Telangana, India.,Professor (AcSIR), Academy of Scientific and Innovative Research, AcSIR Headquarters, CSIR-HRDC campus Sector 19, Kamala Nehru Nagar, Ghaziabad, U.P., 201 002, India
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26
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Seo T, Toyoshima N, Kubota K, Ito H. Tackling Solubility Issues in Organic Synthesis: Solid-State Cross-Coupling of Insoluble Aryl Halides. J Am Chem Soc 2021; 143:6165-6175. [PMID: 33784464 DOI: 10.1021/jacs.1c00906] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Conventional organic synthesis generally relies on the use of liquid organic solvents to dissolve the reactants. Therefore, reactions of sparingly soluble or insoluble substrates are challenging and often ineffective. The development of a solvent-independent solid-state approach that overcomes this longstanding solubility issue would provide innovative synthetic solutions and access to new areas of chemical space. Here, we report extremely fast and highly efficient solid-state palladium-catalyzed Suzuki-Miyaura cross-coupling reactions via a high-temperature ball-milling technique. This solid-state protocol enables the highly efficient cross-couplings of insoluble aryl halides with large polyaromatic structures that are barely reactive under conventional solution-based conditions. Notably, we discovered a new luminescent organic material with a strong red emission. This material was prepared via the solid-state coupling of Pigment violet 23, a compound that has so far not been involved in molecular transformations due to its extremely low solubility. This study thus provides a practical method for accessing unexplored areas of chemical space through molecular transformations of insoluble organic compounds that cannot be carried out by any other approach.
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Affiliation(s)
- Tamae Seo
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
| | - Naoki Toyoshima
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
| | - Koji Kubota
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan.,Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido 001-0021, Japan
| | - Hajime Ito
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan.,Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido 001-0021, Japan
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27
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Liu H, Zhang X, Wang L, Chen Y, Ye D, Chen L, Wen H, Liu S. One‐Pot
Synthesis of 3‐ to
15‐Mer π‐Conjugated
Discrete Oligomers with Widely Tunable Optical Properties. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000457] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hui Liu
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology Ganzhou Jiangxi 341000 China
| | - Xiao‐Feng Zhang
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology Ganzhou Jiangxi 341000 China
| | - Li‐Hong Wang
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology Ganzhou Jiangxi 341000 China
| | - Yan Chen
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology Ganzhou Jiangxi 341000 China
| | - Dong‐Nai Ye
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology Ganzhou Jiangxi 341000 China
| | - Long Chen
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology Ganzhou Jiangxi 341000 China
| | - He‐Rui Wen
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology Ganzhou Jiangxi 341000 China
| | - Shi‐Yong Liu
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology Ganzhou Jiangxi 341000 China
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28
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Kato T, Gupta M, Yamaguchi D, Gan KP, Nakayama M. Supramolecular Association and Nanostructure Formation of Liquid Crystals and Polymers for New Functional Materials. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20200304] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Takashi Kato
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Monika Gupta
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Daisuke Yamaguchi
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kian Ping Gan
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Masanari Nakayama
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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29
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Alonso-Navarro MJ, Barrio J, Royuela S, Karjule N, Ramos MM, Martínez JI, Shalom M, Segura JL. Photocatalytic degradation of organic pollutants through conjugated poly(azomethine) networks based on terthiophene-naphthalimide assemblies. RSC Adv 2021; 11:2701-2705. [PMID: 35424226 PMCID: PMC8693818 DOI: 10.1039/d0ra10379a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 12/30/2020] [Indexed: 11/21/2022] Open
Abstract
A conjugated poly(azomethine) network based on ambipolar terthiophene–naphthalimide assemblies has been synthesized and its electrochemical and UV-vis absorption properties have been investigated. The network has been found to be a promising candidate for the photocatalytic degradation of organic pollutants in aqueous media. A conjugated two-dimensional poly(azomethine) network based on ambipolar terthiophene–naphthalimide assemblies has been synthesized and its electrochemical and UV-vis absorption properties have been investigated.![]()
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Affiliation(s)
- Matías J Alonso-Navarro
- Department of Organic Chemistry, Complutense University of Madrid, Faculty of Chemistry Madrid 28040 Spain .,Chemical and Environmental Technology Department, Univ. Rey Juan Carlos Móstoles 28933 Spain
| | - Jesús Barrio
- Department of Chemistry, Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev Beer-Sheva 8410501 Israel .,Department of Materials, Imperial College London, Royal School of Mines London SW72AZ England
| | - Sergio Royuela
- Department of Organic Chemistry, Complutense University of Madrid, Faculty of Chemistry Madrid 28040 Spain .,Chemical and Environmental Technology Department, Univ. Rey Juan Carlos Móstoles 28933 Spain
| | - Neeta Karjule
- Department of Chemistry, Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev Beer-Sheva 8410501 Israel
| | - M Mar Ramos
- Chemical and Environmental Technology Department, Univ. Rey Juan Carlos Móstoles 28933 Spain
| | - José Ignacio Martínez
- Department of Nanostructures and Low-Dimensional Materials, Institute of Materials Science of Madrid (ICMM-CSIC) 28049 Madrid Spain
| | - Menny Shalom
- Department of Chemistry, Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev Beer-Sheva 8410501 Israel
| | - José L Segura
- Department of Organic Chemistry, Complutense University of Madrid, Faculty of Chemistry Madrid 28040 Spain
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30
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Polythiophene derivatives as chemical sensors: a DFT study on the influence of side groups. J Mol Model 2021; 27:17. [PMID: 33409576 DOI: 10.1007/s00894-020-04632-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 12/01/2020] [Indexed: 12/14/2022]
Abstract
Conjugated polymers have been considered promising candidates for applications in chemical sensors, mainly due to their high versatility of synthesis, low cost, light weight, and suitable optoelectronic properties. In this context, polythiophene (PT) derivatives have been successfully employed. However, at the same time that the versatility of the synthesis allows the production of varied derivatives, the complexity of interactions with analytes hinders an efficient design of compounds with improved sensing properties. In the present report, electronic structure calculations were employed to identify promising PT derivatives for chemical sensor applications. Structural, optoelectronic, and reactivity properties of a set of branched PT derivatives were evaluated. Adsorption studies considering different gaseous compounds were conducted for selected systems. The results suggest that an appropriate choice of the side groups can lead to derivatives with improved sensorial properties. In particular, PT-CN derivative was identified as the most promising compound for high sensitive chemical sensors towards SO2 and NH3 analytes.
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31
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Minudri D, Orlandi S, Cavazzini M, Rossi S, Marzari G, Cavallo P, Fernandez L, Fungo F, Pozzi G. Electron Donor‐Acceptor Spirobi[cyclopenta[2,1‐
b
: 3,4‐
b′
]dithiophene] Derivatives as Precursors of Electrodeposited Regioregular Thiophene‐based Polymers. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Daniela Minudri
- IITEMA, UNRC-CONICET Departamento de Química Universidad Nacional de Río Cuarto Agencia Postal 3 X5804BYA Río Cuarto Argentina
| | - Simonetta Orlandi
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” (SCITEC) Consiglio Nazionale delle Ricerche (CNR) via C. Golgi 19 20133 Milano Italy
| | - Marco Cavazzini
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” (SCITEC) Consiglio Nazionale delle Ricerche (CNR) via C. Golgi 19 20133 Milano Italy
| | - Sergio Rossi
- Dipartimento di Chimica Università degli Studi di Milano via C. Golgi 19 20133 Milano Italy
| | - Gabriela Marzari
- IITEMA, UNRC-CONICET Departamento de Química Universidad Nacional de Río Cuarto Agencia Postal 3 X5804BYA Río Cuarto Argentina
| | - Pablo Cavallo
- IITEMA, UNRC-CONICET Departamento de Química Universidad Nacional de Río Cuarto Agencia Postal 3 X5804BYA Río Cuarto Argentina
| | - Luciana Fernandez
- IITEMA, UNRC-CONICET Departamento de Química Universidad Nacional de Río Cuarto Agencia Postal 3 X5804BYA Río Cuarto Argentina
| | - Fernando Fungo
- IITEMA, UNRC-CONICET Departamento de Química Universidad Nacional de Río Cuarto Agencia Postal 3 X5804BYA Río Cuarto Argentina
| | - Gianluca Pozzi
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” (SCITEC) Consiglio Nazionale delle Ricerche (CNR) via C. Golgi 19 20133 Milano Italy
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32
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Guijarro FG, Medina Rivero S, Gunasekaran S, Arretxea I, Ponce Ortiz R, Caballero R, de la Cruz P, Langa F, Venkataraman L, Casado J. Synthesis and electronic properties of pyridine end-capped cyclopentadithiophene-vinylene oligomers. RSC Adv 2020; 10:41264-41271. [PMID: 35516533 PMCID: PMC9057865 DOI: 10.1039/d0ra08220a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 11/01/2020] [Indexed: 11/21/2022] Open
Abstract
A series of four oligomers of cyclopentadithiophene-vinylenes end capped with pyridine groups was prepared and their optical and electronic properties studied. Treatment with trifluoroacetic acid (TFA) leads to the bisprotonation of the nitrogens of the pyridine, which has an important impact on the optical properties. Excess treatment with TFA provokes the oxidation of the conjugated core, generating radical cations and dications. The ease of the TFA treatment in solution was extended to protonation in the solid-state where further characterization of the neutral and TFA-treated samples was carried out in electrically active substrates in organic field-effect transistors. Finally, the new molecules were found to be excellent conductors in single-molecule junctions thanks to strong electron delocalization and resonance orbital mediated transport. These studies show the opening of a spectrum of possibilities by suitable terminal substitution of π-cores.
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Affiliation(s)
- Fernando G Guijarro
- Instituto de Nanociencia, Nanotecnología y Materiales Moleculares (INAMOL), Universidad de Castilla-La Mancha Toledo Spain
| | - Samara Medina Rivero
- Department of Physical Chemistry, University of Malaga Campus de Teatinos s/n 229071 Malaga Spain
| | | | - Iratxe Arretxea
- Department of Physical Chemistry, University of Malaga Campus de Teatinos s/n 229071 Malaga Spain
| | - Rocío Ponce Ortiz
- Department of Physical Chemistry, University of Malaga Campus de Teatinos s/n 229071 Malaga Spain
| | - Rubén Caballero
- Instituto de Nanociencia, Nanotecnología y Materiales Moleculares (INAMOL), Universidad de Castilla-La Mancha Toledo Spain
| | - Pilar de la Cruz
- Instituto de Nanociencia, Nanotecnología y Materiales Moleculares (INAMOL), Universidad de Castilla-La Mancha Toledo Spain
| | - Fernando Langa
- Instituto de Nanociencia, Nanotecnología y Materiales Moleculares (INAMOL), Universidad de Castilla-La Mancha Toledo Spain
| | - Latha Venkataraman
- Department of Chemistry, Columbia University New York 10027 USA
- Department of Applied Physics and Applied Mathematics, Columbia University New York 10027 USA
| | - Juan Casado
- Department of Physical Chemistry, University of Malaga Campus de Teatinos s/n 229071 Malaga Spain
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33
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Popli C, Jang Y, Patil Y, Misra R, D'Souza F. Formation of Highly Efficient, Long‐Lived Charge Separated States in Star‐Shaped Ferrocene‐Diketopyrrolopyrrole‐Triphenylamine Donor–Acceptor–Donor Conjugates. Chemistry 2020; 26:15109-15115. [DOI: 10.1002/chem.202002851] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 06/25/2020] [Indexed: 11/11/2022]
Affiliation(s)
- Charu Popli
- Department of Chemistry Indian Institute of Technology Indore 453552 India
| | - Youngwoo Jang
- Department of Chemistry University of North Texas 1155 Union Circle, #305070 Denton TX 76203-5017 USA
| | - Yuvraj Patil
- Department of Chemistry Indian Institute of Technology Indore 453552 India
| | - Rajneesh Misra
- Department of Chemistry Indian Institute of Technology Indore 453552 India
| | - Francis D'Souza
- Department of Chemistry University of North Texas 1155 Union Circle, #305070 Denton TX 76203-5017 USA
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34
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Demay-Drouhard P, Baumgartner T. Highly Luminescent 4-Pyridyl-Extended Dithieno[3,2-b:2′,3′-d]phospholes. J Org Chem 2020; 85:14627-14633. [DOI: 10.1021/acs.joc.0c01369] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Paul Demay-Drouhard
- Department of Chemistry, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada
| | - Thomas Baumgartner
- Department of Chemistry, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada
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35
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Gundogan AS, Jagadesan P, Schanze KS. Photophysics of Oligothiophenes End‐Capped with Platinum(II) Auxochromes. CHEMPHOTOCHEM 2020. [DOI: 10.1002/cptc.202000123] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ali S. Gundogan
- Department of Chemistry University of Texas at San Antonio San Antonio 78249, TX United States
| | - Pradeepkumar Jagadesan
- Department of Chemistry University of Texas at San Antonio San Antonio 78249, TX United States
| | - Kirk S. Schanze
- Department of Chemistry University of Texas at San Antonio San Antonio 78249, TX United States
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36
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Paixão DB, Rampon DS, Salles HD, Soares EGO, Bilheri FN, Schneider PH. Trithiocarbonate Anion as a Sulfur Source for the Synthesis of 2,5-Disubstituted Thiophenes and 2-Substituted Benzo[b]thiophenes. J Org Chem 2020; 85:12922-12934. [DOI: 10.1021/acs.joc.0c01516] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Douglas B. Paixão
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal do Rio Grande do Sul (UFRGS), P.O. Box 15003, 91501-970, Porto Alegre, Rio Grande do Sul, Brazil
| | - Daniel S. Rampon
- Laboratório de Polímeros e Catálise (LAPOCA), Departamento de Química, Universidade Federal do Paraná (UFPR), P.O. Box 19061, 81531-990, Curitiba, Rio Grande do Sul, Brazil
| | - Helena D. Salles
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal do Rio Grande do Sul (UFRGS), P.O. Box 15003, 91501-970, Porto Alegre, Rio Grande do Sul, Brazil
| | - Eduardo G. O. Soares
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal do Rio Grande do Sul (UFRGS), P.O. Box 15003, 91501-970, Porto Alegre, Rio Grande do Sul, Brazil
| | - Filipe N. Bilheri
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal do Rio Grande do Sul (UFRGS), P.O. Box 15003, 91501-970, Porto Alegre, Rio Grande do Sul, Brazil
| | - Paulo H. Schneider
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal do Rio Grande do Sul (UFRGS), P.O. Box 15003, 91501-970, Porto Alegre, Rio Grande do Sul, Brazil
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37
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Gebers J, Özen B, Hartmann L, Schaer M, Suàrez S, Bugnon P, Scopelliti R, Steinrück H, Konovalov O, Magerl A, Brinkmann M, Petraglia R, Silva P, Corminboeuf C, Frauenrath H. Crystallization and Organic Field‐Effect Transistor Performance of a Hydrogen‐Bonded Quaterthiophene. Chemistry 2020; 26:10265-10275. [DOI: 10.1002/chem.201904562] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 04/23/2020] [Indexed: 11/11/2022]
Affiliation(s)
- Jan Gebers
- Institute of Materials École Polytechnique Fédérale de Lausanne (EPFL), EPFL-STI-IMX-LMOM, MXG 135 Station 12 1015 Lausanne Switzerland
| | - Bilal Özen
- Institute of Materials École Polytechnique Fédérale de Lausanne (EPFL), EPFL-STI-IMX-LMOM, MXG 135 Station 12 1015 Lausanne Switzerland
| | - Lucia Hartmann
- Institute of Materials École Polytechnique Fédérale de Lausanne (EPFL), EPFL-STI-IMX-LMOM, MXG 135 Station 12 1015 Lausanne Switzerland
| | - Michel Schaer
- Institute of Materials École Polytechnique Fédérale de Lausanne (EPFL), EPFL-STI-IMX-LMOM, MXG 135 Station 12 1015 Lausanne Switzerland
| | - Stéphane Suàrez
- Institute of Materials École Polytechnique Fédérale de Lausanne (EPFL), EPFL-STI-IMX-LMOM, MXG 135 Station 12 1015 Lausanne Switzerland
| | - Philippe Bugnon
- Institute of Condensed Matter Physics École Polytechnique Fédérale de Lausanne (EPFL), EPFL-PH J0 491 Station 3 1015 Lausanne Switzerland
| | - Rosario Scopelliti
- Institute of Chemical Sciences and Engineering École Polytechnique Fédérale de Lausanne (EPFL), EPFL-BCH 2111, Batochime UNIL Avenue Forel 2 1015 Lausanne Switzerland
| | - Hans‐Georg Steinrück
- Crystallography and Structural Physics University of Erlangen-Nürnberg Staudtstrasse 3 91058 Erlangen Germany
- Present address: Department Chemie Universität Paderborn Warburger Strasse 100 33098 Paderborn Germany
| | - Oleg Konovalov
- European Synchrotron Radiation Facility (ESRF) 6 rue Jules Horowitz, BP220 38043 Grenoble Cedex France
| | - Andreas Magerl
- Crystallography and Structural Physics University of Erlangen-Nürnberg Staudtstrasse 3 91058 Erlangen Germany
| | - Martin Brinkmann
- Institut Charles Sadron CNRS Université de Strasbourg Rue du Loess 23 67034 Strasbourg France
| | - Riccardo Petraglia
- Institute of Chemical Sciences and Engineering École Polytechnique Fédérale de Lausanne (EPFL), EPFL-BCH 5312, Batochime UNIL Avenue Forel 2 1015 Lausanne Switzerland
| | - Piotr Silva
- Institute of Chemical Sciences and Engineering École Polytechnique Fédérale de Lausanne (EPFL), EPFL-BCH 5312, Batochime UNIL Avenue Forel 2 1015 Lausanne Switzerland
- present address: Department of Energy Conversion and Storage Technical University of Denmark Anker Engelunds Vej 301 2800 Kongens Lyngby Denmark
| | - Clémence Corminboeuf
- Institute of Chemical Sciences and Engineering École Polytechnique Fédérale de Lausanne (EPFL), EPFL-BCH 5312, Batochime UNIL Avenue Forel 2 1015 Lausanne Switzerland
| | - Holger Frauenrath
- Institute of Materials École Polytechnique Fédérale de Lausanne (EPFL), EPFL-STI-IMX-LMOM, MXG 135 Station 12 1015 Lausanne Switzerland
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38
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Liang W, Nakajima K, Nishibayashi Y. Rhodium-Catalyzed Cyclization Reactions of Thiadiazoles with Phosphaalkynes to Prepare 1,3-Thiaphospholes. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000506] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Wenbin Liang
- Department of Systems Innovation; School of Engineering; The University of Tokyo; Hongo, Bunkyo-ku 113-8658 Tokyo Japan
| | - Kazunari Nakajima
- Frontier Research Center for Energy and Resources; School of Engineering; The University of Tokyo; Hongo, Bunkyo-ku 113-8658 Tokyo Japan
| | - Yoshiaki Nishibayashi
- Department of Systems Innovation; School of Engineering; The University of Tokyo; Hongo, Bunkyo-ku 113-8658 Tokyo Japan
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39
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Well-Defined Conjugated Macromolecules Based on Oligo(Arylene Ethynylene)s in Sensing. Processes (Basel) 2020. [DOI: 10.3390/pr8050539] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Macromolecules with well-defined structures in terms of molar mass and monomer sequence became interesting building blocks for modern materials. The precision of the macromolecular structure makes fine-tuning of the properties of resulting materials possible. Conjugated macromolecules exhibit excellent optoelectronic properties that make them exceptional candidates for sensor construction. The importance of chain length and monomer sequence is particularly important in conjugated systems. The oligomer length, monomer sequence, and structural modification often influence the energy bang gap between the highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO) of the molecules that reflect in their properties. Moreover, the supramolecular aggregation that is often observed in oligo-conjugated systems is usually strongly affected by even minor structural changes that are used for sensor designs. This review discusses the examples of well-defined conjugated macromolecules based on oligo(arylene ethynylene) skeleton used for sensor applications. Here, exclusively examples of uniform macromolecules are summarized. The sensing mechanisms and importance of uniformity of structure are deliberated.
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40
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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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41
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Misra M, Liu Z, Dong BX, Patel SN, Nealey PF, Ober CK, Escobedo FA. Thermal Stability of π-Conjugated n-Ethylene-Glycol-Terminated Quaterthiophene Oligomers: A Computational and Experimental Study. ACS Macro Lett 2020; 9:295-300. [PMID: 35648538 DOI: 10.1021/acsmacrolett.9b00935] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This work represents a joint computational and experimental study on a series of n-ethylene glycol (PEOn)-terminated quaterthiophene (4T) oligomers for 1 < n < 10 to elucidate their self-assembly behavior into a smectic-like lamellar phase. This study builds on an earlier study for n = 4 that showed that our model predictions were consistent with experimental data on the melting behavior and structure of the lamellar phase, with the latter consisting of crystal-like 4T domains and liquid-like PEO4 domains. The present study aims to understand how the length of the terminal PEOn chains modulates the disordering temperature of the lamellar phase and hence the relative stability of the ordered structure. A simplified bilayer model, where the 4T domains are not explicitly described, is put forward to efficiently estimate the disordering effect of the PEO domains with increasing n; this method is first validated by correctly predicting that layers of alkyl (PE)-capped 4T oligomers (for 1 < n < 10) stay ordered at room temperature. Both 4T-domain implicit and explicit model simulations reveal that the order-disorder temperature decreases with the length of the PEO capping chains, as the associated increase in conformational entropy drives a tendency toward disorder that overtakes the cohesive energy, keeping the ordered packing of the 4T domains.
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Affiliation(s)
| | | | - Ban Xuan Dong
- Priztker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Shrayesh N Patel
- Priztker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Paul F Nealey
- Priztker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
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42
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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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43
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Sun Y, Li T. Fabrication and Application of Graphene Supported Diimine‐Palladium Complex Catalyst for Organic Synthesis. ChemistrySelect 2020. [DOI: 10.1002/slct.201904488] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Yunlong Sun
- School of PharmacyGuangdong Pharmaceutical University School of Pharmacy, Guangdong Pharmaceutical University Guangzhou 510008 China
| | - Tian Li
- School of Chemistry and Chemical EngineeringGuangdong Pharmaceutical University School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University Zhongshan 528458 China
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44
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Hagara J, Mrkyvkova N, Feriancová L, Putala M, Nádaždy P, Hodas M, Shaji A, Nádaždy V, Huss-Hansen MK, Knaapila M, Hagenlocher J, Russegger N, Zwadlo M, Merten L, Sojková M, Hulman M, Vlad A, Pandit P, Roth S, Jergel M, Majková E, Hinderhofer A, Siffalovic P, Schreiber F. Novel highly substituted thiophene-based n-type organic semiconductor: structural study, optical anisotropy and molecular control. CrystEngComm 2020. [DOI: 10.1039/d0ce01171a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Oligothiophenes and their functionalized derivatives have been shown to be a viable option for high-performance organic electronic devices.
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45
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Wang Y, Miao J, Dou C, Liu J, Wang L. BODIPY bearing alkylthienyl side chains: a new building block to design conjugated polymers with near infrared absorption for organic photovoltaics. Polym Chem 2020. [DOI: 10.1039/d0py00868k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A new benzene-fused BODIPY unit for designing polymer donors with near-infrared absorption for organic photovoltaics.
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Affiliation(s)
- Yinghui Wang
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- People's Republic of China
| | - Junhui Miao
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- People's Republic of China
| | - Chuandong Dou
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- People's Republic of China
| | - Jun Liu
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- People's Republic of China
| | - Lixiang Wang
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- People's Republic of China
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46
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Usta H, Alimli D, Ozdemir R, Dabak S, Zorlu Y, Alkan F, Tekin E, Can A. Highly Efficient Deep-Blue Electroluminescence Based on a Solution-Processable A-π-D-π-A Oligo( p-phenyleneethynylene) Small Molecule. ACS APPLIED MATERIALS & INTERFACES 2019; 11:44474-44486. [PMID: 31609580 DOI: 10.1021/acsami.9b12971] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The development of solution-processable fluorescent small molecules with highly efficient deep-blue electroluminescence is of growing interest for organic light-emitting diode (OLED) applications. However, high-performance deep-blue fluorescent emitters with external quantum efficiencies (EQEs) over 5% are still scarce in OLEDs. Herein, a novel highly soluble oligo(p-phenyleneethynylene)-based small molecule, 1,4-bis((2-cyanophenyl)ethynyl)-2,5-bis(2-ethylhexyloxy)benzene (2EHO-CNPE), is designed, synthesized, and fully characterized as a wide band gap (2.98 eV) and highly fluorescent (ΦPL = 0.90 (solution) and 0.51 (solid-state)) deep-blue emitter. The new molecule is functionalized with cyano (-CN)/2-ethylhexyloxy (-OCH2CH(C2H5)C4H9) electron-withdrawing/-donating substituents, and ethynylene is used as a π-spacer to form an acceptor (A)-π-donor (D)-π-acceptor (A) molecular architecture with hybridized local and charge transfer (HLCT) excited states. Physicochemical and optoelectronic characterizations of the new emitter were performed in detail, and the single-crystal structure was determined. The new molecule adopts a nearly coplanar π-conjugated framework packed via intermolecular "C-H···π" and "C-H···N" hydrogen bonding interactions without any π-π stacking. The OLED device based on 2EHO-CNPE shows an EQEmax of 7.06% (EQE = 6.30% at 200 cd/m2) and a maximum current efficiency (CEmax) of 5.91 cd/A (CE = 5.34 cd/A at 200 cd/m2) with a deep-blue emission at CIE of (0.15, 0.09). The electroluminescence performances achieved here are among the highest reported to date for a solution-processed deep-blue fluorescent small molecule, and, to the best of our knowledge, it is the first time that a deep-blue OLED is reported based on the oligo(p-phenyleneethynylene) π-framework. TDDFT calculations point to facile reverse intersystem crossing (RISC) processes in 2EHO-CNPE from high-lying triplet states to the first singlet excited state (T2/T3 → S1) (hot-exciton channels) that enable a high radiative exciton yield (ηr ∼ 69%) breaking the theoretical limit of 25% in conventional fluorescent OLEDs. These results demonstrate that properly designed fluorescent oligo(p-phenyleneethynylenes) can be a key player in high-performance deep-blue OLEDs.
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Affiliation(s)
- Hakan Usta
- Department of Materials Science and Nanotechnology Engineering , Abdullah Gül University , 38080 Kayseri , Turkey
| | - Dilek Alimli
- Department of Chemistry , Gebze Technical University , 41400 Gebze , Kocaeli , Turkey
| | - Resul Ozdemir
- Department of Materials Science and Nanotechnology Engineering , Abdullah Gül University , 38080 Kayseri , Turkey
| | - Salih Dabak
- The Scientific and Technological Research Council of Turkey (TUBITAK)-Marmara Research Center (MAM) , 41470 Gebze , Kocaeli , Turkey
| | - Yunus Zorlu
- Department of Chemistry , Gebze Technical University , 41400 Gebze , Kocaeli , Turkey
| | - Fahri Alkan
- Department of Materials Science and Nanotechnology Engineering , Abdullah Gül University , 38080 Kayseri , Turkey
| | - Emine Tekin
- The Scientific and Technological Research Council of Turkey (TUBITAK)-Marmara Research Center (MAM) , 41470 Gebze , Kocaeli , Turkey
| | - Ayse Can
- Department of Materials Science and Nanotechnology Engineering , Abdullah Gül University , 38080 Kayseri , Turkey
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47
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Adachi Y, Nabeya T, Nomura T, Kondo K, Kawakami K, Ooyama Y, Ohshita J. Direct comparison of dithienosilole and dithienogermole as π-conjugated linkers in photosensitizers for dye-sensitized solar cells. Dalton Trans 2019; 48:16671-16678. [PMID: 31663580 DOI: 10.1039/c9dt02600b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Dithienosilole (DTS) and dithienogermole (DTG) are useful building units of π-conjugated organic materials. In the present work, donor-π-acceptor (D-π-A) dyes with bis(dihexyloxyphenyl)aminophenyl, DTS or DTG, and pyridine or cyanoacrylic acid as the donor (D), the π-conjugated linker (π), and the acceptor (A) units, respectively, were prepared and their optical properties were investigated. The D-π-A dyes exhibited strong absorption in the visible region, indicating efficient intramolecular donor-acceptor interaction. The addition of trifluoroacetic acid to solutions of pyridine-containing dyes led to red-shifts of the absorption bands as a result of pyridinium salt formation. Similar red-shifts were observed for cyanoacrylic acid dyes, which were due to the enhanced formation of neutral dyes relative to the separated ion pairs. The D-π-A dyes, however, showed similar absorption spectra when attached to the TiO2 surface, indicating that the dye-TiO2 electronic interaction was rather weak. In contrast to the finding that these dyes exhibited similar optical properties regardless of the π-linker (i.e., DTS or DTG), dye-sensitized solar cells (DSSCs) based on DTG-containing dyes exhibited superior performance compared to those based on DTS-containing dyes. Electrochemical impedance spectroscopy measurements supported the higher performance of the DSSCs with DTG-containing dyes.
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Affiliation(s)
- Yohei Adachi
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan.
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48
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El-Khalek HA, Abd- El Salam M, Amin FM. Effect of thermal annealing and aging time on optical properties of alpha-sexithiophene thin films. OPTICAL MATERIALS 2019; 95:109234. [DOI: 10.1016/j.optmat.2019.109234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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49
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Feroci M, Civitarese T, Pandolfi F, Petrucci R, Rocco D, Zane D, Zollo G, Mattiello L. Electrochemical Studies of New Donor‐Acceptor Oligothiophenes. ChemElectroChem 2019. [DOI: 10.1002/celc.201900920] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Marta Feroci
- Dept. of Basic and Applied Sciences for EngineeringSapienza University of Rome Via del Castro Laurenziano 7 00161 Rome Italy
| | - Tommaso Civitarese
- Dept. of Basic and Applied Sciences for EngineeringSapienza University of Rome Via del Castro Laurenziano 7 00161 Rome Italy
| | - Fabiana Pandolfi
- Dept. of Basic and Applied Sciences for EngineeringSapienza University of Rome Via del Castro Laurenziano 7 00161 Rome Italy
| | - Rita Petrucci
- Dept. of Basic and Applied Sciences for EngineeringSapienza University of Rome Via del Castro Laurenziano 7 00161 Rome Italy
| | - Daniele Rocco
- Dept. of Basic and Applied Sciences for EngineeringSapienza University of Rome Via del Castro Laurenziano 7 00161 Rome Italy
| | - Daniela Zane
- CNR-ISMNSapienza University of Rome P.le Aldo Moro 5 00185 Rome Italy
| | - Giuseppe Zollo
- Dept. of Basic and Applied Sciences for EngineeringSapienza University of Rome Via del Castro Laurenziano 7 00161 Rome Italy
| | - Leonardo Mattiello
- Dept. of Basic and Applied Sciences for EngineeringSapienza University of Rome Via del Castro Laurenziano 7 00161 Rome Italy
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50
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Caselli M, Vanossi D, Buffagni M, Imperato M, Pigani L, Mucci A, Parenti F. Optoelectronic Properties of A-π-D-π-A Thiophene-Based Materials with a Dithienosilole Core: An Experimental and Theoretical Study. Chempluschem 2019; 84:1314-1323. [PMID: 31944051 DOI: 10.1002/cplu.201900092] [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: 02/06/2019] [Revised: 04/12/2019] [Indexed: 01/09/2023]
Abstract
Two A-π-D-π-A thiophene-based small molecules with a central dithienosilole core and dicyanovinyl (DCV) end groups were synthesized. These compounds differ only by the presence of alkyl and alkylsulfanyl chains, respectively, on the thiophene beta positions. Computational data together with the spectroscopic and electrochemical findings (obtained by means of absorption, steady-state/time-resolved emission techniques, and cyclic voltammetry) revealed that both molecules possess low electronic and optical band gaps, broad absorption spectra, and good stability both in p and n-doping states, which make them suitable for optoelectronic applications. In both compounds, the HOMO-LUMO transition involves an intramolecular charge transfer from the electron-donor dithienosilole unit to the two terminal electron-acceptor DCV groups. A marked positive emission solvatochromism was observed for both molecules and was interpreted on the basis of the symmetry breaking in the S1 excited state. The two synthesized compounds were also compared to their shorter precursors and to similar oligothiophenes to understand how the nature of the building block influences the characteristics of the final materials. Furthermore, it was possible to better understand the contribution of the sulfur atom in modulating the optical properties of the small molecules studied.
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Affiliation(s)
- Monica Caselli
- Dipartimento di Scienze Chimiche e Geologiche, Università di Modena e Reggio Emilia, Via G. Campi 103, 41125, Modena, Italy
| | - Davide Vanossi
- Dipartimento di Scienze Chimiche e Geologiche, Università di Modena e Reggio Emilia, Via G. Campi 103, 41125, Modena, Italy
| | - Mirko Buffagni
- Dipartimento di Scienze Chimiche e Geologiche, Università di Modena e Reggio Emilia, Via G. Campi 103, 41125, Modena, Italy
| | - Manuel Imperato
- Dipartimento di Scienze Chimiche e Geologiche, Università di Modena e Reggio Emilia, Via G. Campi 103, 41125, Modena, Italy
| | - Laura Pigani
- Dipartimento di Scienze Chimiche e Geologiche, Università di Modena e Reggio Emilia, Via G. Campi 103, 41125, Modena, Italy
| | - Adele Mucci
- Dipartimento di Scienze Chimiche e Geologiche, Università di Modena e Reggio Emilia, Via G. Campi 103, 41125, Modena, Italy
| | - Francesca Parenti
- Dipartimento di Scienze Chimiche e Geologiche, Università di Modena e Reggio Emilia, Via G. Campi 103, 41125, Modena, Italy
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