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Petrov AA, Chen L, Li M, Fateev SA, Petrov AV, Khrustalev VN, Tarasov AB. Crystal structures and luminescence properties of halocuprates with trimethylsulfonium cations. Dalton Trans 2025. [PMID: 40384177 DOI: 10.1039/d5dt00852b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/20/2025]
Abstract
We report the crystal structures, thermal stability, and luminescence properties of three trimethylsulfonium halocuprates: (TMS)Cu2I3, and two new bromide phases: (TMS)Cu2Br3 and (TMS)2CuBr3. (TMS)Cu2I3 and (TMS)Cu2Br3 are isostructural and contain double chains of edge-sharing [CuX4] tetrahedra, whereas (TMS)2CuBr3 features isolated [CuBr3]2- triangular units. All compounds exhibit direct bandgaps and demonstrate photoluminescence at low temperature, with (TMS)Cu2Br3 demonstrating temperature-dependent dual emission behavior, observed for the first time among related hybrid halocuprates. Through comparative analysis of optical properties with structurally related halocuprates and DFT calculations, we elucidate the structure-property relationships governing the observed luminescence behavior of ACu2X3-type halocuprates.
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Affiliation(s)
- Andrey A Petrov
- Faculty of Materials Science, Shenzhen MSU-BIT University, 518172 Shenzhen, China.
- Laboratory of New Materials for Solar Energetics, Department of Materials Science, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Luyi Chen
- Faculty of Materials Science, Shenzhen MSU-BIT University, 518172 Shenzhen, China.
| | - Mingming Li
- Faculty of Materials Science, Shenzhen MSU-BIT University, 518172 Shenzhen, China.
| | - Sergey A Fateev
- Faculty of Materials Science, Shenzhen MSU-BIT University, 518172 Shenzhen, China.
- Laboratory of New Materials for Solar Energetics, Department of Materials Science, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Andrey V Petrov
- Institute of Chemistry, Saint Petersburg State University, 199034 Saint Petersburg, Russia
| | - Victor N Khrustalev
- Inorganic Chemistry Department, Peoples' Friendship University of Russia (RUDN University), 117198 Moscow, Russian Federation
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Alexey B Tarasov
- Laboratory of New Materials for Solar Energetics, Department of Materials Science, Lomonosov Moscow State University, 119991 Moscow, Russia
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russian Federation
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Banerjee A, Kajol, Biswas M, Das NR, Pathak RK. Supra-Hybrid Nanocarriers of Calix[4]Arene and PLGA for Enhanced Encapsulation and Extended Delivery of Gossypol in Cancer Therapy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2025:e2501235. [PMID: 40370280 DOI: 10.1002/smll.202501235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2025] [Revised: 03/28/2025] [Indexed: 05/16/2025]
Abstract
In this study, supra-hybrid nanocarriers Cal-P NPs are developed by combining amphiphilic macrocyclic calix[4]arene and PLGA, offering adequate stability and multifunctionality as a single-platform nanocarrier resulting in monodispersed nanoparticles with unique synthetic tunability and an optimized hydrophobic core for therapeutic encapsulation. Unlike conventional multicomponent systems, the design eliminates the need for many external stabilizers while enabling tailored PEGylation for controlled drug release, as demonstrated with hydrophobic gossypol. This innovation addresses key limitations in cancer nanomedicine, including premature drug leakage and dose frequency, through a synthetically tunable and structurally optimized, bioresistant core. Gossypol, a model bioactive molecule with poor water solubility, is effectively loaded into the Cal-P NPs, significantly enhancing its aqueous solubility to millimolar concentrations. The encapsulation is driven by favorable interactions between gossypol and the hydrophobic groups of calixarene and PLGA, resulting in a stable core with sustained release properties. Validated through in vivo pharmacokinetic studies and detailed anticancer experiments in two distinct cancer cell lines, GP-Cal-P NPs demonstrated their potential as a robust platform for therapeutic delivery. These findings emphasize the versatility of Cal-P NPs in addressing challenges associated with hydrophobic drugs and highlight their promise for further preclinical and clinical development.
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Affiliation(s)
- Arka Banerjee
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER Berhampur), Berhampur, Odisha, 760010, India
| | - Kajol
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER Berhampur), Berhampur, Odisha, 760010, India
- Department of Biological Sciences, Indian Institute of Science Education and Research (IISER Berhampur), Berhampur, Odisha, 760010, India
| | - Megha Biswas
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER Berhampur), Berhampur, Odisha, 760010, India
| | - Nihar Ranjan Das
- Department of Pharmacology, GITAM School of Pharmacy, GITAM deemed to be University, Gandhi Nagar, Visakhapatnam, Andhra Pradesh, 530045, India
- Department of Pharmacology, Roland Institute of Pharmaceutical Sciences, Berhampur, Odisha, 760010, India
| | - Rakesh Kumar Pathak
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER Berhampur), Berhampur, Odisha, 760010, India
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An R, Wang Q, Liang Y, Du P, Lei P, Sun H, Wang X, Feng J, Song S, Zhang H. Reversible Structural Phase Transitions in Zero-Dimensional Cu(I)-Based Metal Halides for Dynamically Tunable Emissions. Angew Chem Int Ed Engl 2025; 64:e202413991. [PMID: 39262300 DOI: 10.1002/anie.202413991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2024] [Revised: 09/09/2024] [Accepted: 09/10/2024] [Indexed: 09/13/2024]
Abstract
Exploring structural phase transitions and luminescence mechanisms in zero-dimensional (0D) metal halides poses significant challenges, that are crucial for unlocking the full potential of tunable optical properties and diversifying their functional capabilities. Herein, we have designed two inter-transformable 0D Cu(I)-based metal halides, namely (C19H18P)2CuI3 and (C19H18P)2Cu4I6, through distinct synthesis conditions utilizing identical reactants. Their optical properties and luminescence mechanisms were systematically elucidated by experiments combined with density functional theory calculations. The bright cyan-fluorescent (C19H18P)2CuI3 with high photoluminescence quantum yield (PLQY) of 77 % is attributed to the self-trapped exciton emission. Differently, the broad yellow-orange fluorescence of (C19H18P)2Cu4I6 displays a remarkable PLQY of 83 %. Its luminescence mechanism is mainly attributed to the combined effects of metal/halide-to-ligand charge transfer and cluster-centered charge transfer, which effects stem from the strong Cu-Cu bonding interactions in the (Cu4I6)2- clusters. Moreover, (C19H18P)2CuI3 and (C19H18P)2Cu4I6 exhibit reversible structural phase transitions. The elucidation of the phase transitions mechanism has paved the way for an unforgeable anti-counterfeiting system. This system dynamically shifts between cyan and yellow-orange fluorescence, triggered by the phase transitions, bolstering security and authenticity. This work enriches the luminescence theory of 0D metal halides, offering novel strategies for optical property modulation and fostering optical applications.
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Affiliation(s)
- Ran An
- Faculty of Chemistry, Northeast Normal University, Jilin, Changchun, 130024, China E-mail: addresses
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Jilin, Changchun, 130022, China
| | - Qishun Wang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Jilin, Changchun, 130022, China
| | - Yuan Liang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Jilin, Changchun, 130022, China
- University of Science and Technology of China, Anhui, Hefei, 230026, China
| | - Pengye Du
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Jilin, Changchun, 130022, China
- University of Science and Technology of China, Anhui, Hefei, 230026, China
| | - Pengpeng Lei
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Jilin, Changchun, 130022, China
| | - Haizhu Sun
- Faculty of Chemistry, Northeast Normal University, Jilin, Changchun, 130024, China E-mail: addresses
| | - Xinyu Wang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Jilin, Changchun, 130022, China
| | - Jing Feng
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Jilin, Changchun, 130022, China
- University of Science and Technology of China, Anhui, Hefei, 230026, China
| | - Shuyan Song
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Jilin, Changchun, 130022, China
- University of Science and Technology of China, Anhui, Hefei, 230026, China
| | - Hongjie Zhang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Jilin, Changchun, 130022, China
- University of Science and Technology of China, Anhui, Hefei, 230026, China
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
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Qi JL, Guo Y, Wu J, Huang QF, Xu JJ, Yan SF, Liu W, Guo SP. Near Ultraviolet-Excitable Cyan-Emissive Hybrid Copper(I) Halides Nonlinear Optical Crystals with Near-Unity Photoluminescence Quantum Yield and High-Efficiency X-ray Scintillation. Angew Chem Int Ed Engl 2024; 63:e202407074. [PMID: 38978178 DOI: 10.1002/anie.202407074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Revised: 06/17/2024] [Accepted: 07/08/2024] [Indexed: 07/10/2024]
Abstract
Designing and synthesizing multifunctional hybrid copper halides with near ultraviolet (NUV) light-excited high-energy emission (<500 nm) remains challenging. Here, a pair of broadband-excited high-energy emitting isomers, namely, α-/β-(MePh3P)2CuI3 (MePh3P=methyltriphenylphosphonium), were synthesized. α-(MePh3P)2CuI3 with blue emission peaking at 475 nm is firstly discovered wherein its structure contains regular [CuI3]2- triangles and crystallizes in centrosymmetric space group P21/c. While β-(MePh3P)2CuI3 featuring distorted [CuI3]2- planar triangles shows inversion symmetry breaking and crystallizes in the noncentrosymmetric space group P21, which exhibits cyan emission peaking at 495 nm with prominent near-unity photoluminescence quantum yield and the excitation band ranging from 200 to 450 nm. Intriguingly, β-(MePh3P)2CuI3 exhibits phase-matchable second-harmonic generation response of 0.54×KDP and a suitable birefringence of 0.06@1064 nm. Furthermore, β-(MePh3P)2CuI3 also can be excited by X-ray radioluminescence with a high scintillation light yield of 16193 photon/MeV and an ultra-low detection limit of 47.97 nGy/s, which is only 0.87 % of the standard medical diagnosis (5.5 μGy/s). This work not only promotes the development of solid-state lighting, laser frequency conversion and X-ray imaging, but also provides a reference for constructing multifunctional hybrid metal halides.
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Affiliation(s)
- Jing-Li Qi
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou, 250002, China
| | - Yue Guo
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou, 250002, China
| | - Jiajing Wu
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou, 250002, China
| | - Qiao-Feng Huang
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou, 250002, China
| | - Jun-Jie Xu
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou, 250002, China
| | - Shu-Fang Yan
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou, 250002, China
| | - Wenlong Liu
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou, 250002, China
| | - Sheng-Ping Guo
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou, 250002, China
- Yunnan Key Laboratory of Electromagnetic Materials and Devices, National Center for International Research on Photoelectric and Energy Materials, School of Material and Energy, Yunnan University, Kunming, 650000, P. R. China
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Kong L, Peng H, Wei Q, Liang Q, Zhao J, Zou B. Efficient tunable white emission and multiple reversible photoluminescence switching in organic Tin(IV) chlorides via regulating the host lattice environment of antimony ions for multifunctional applications. J Colloid Interface Sci 2024; 666:560-571. [PMID: 38613978 DOI: 10.1016/j.jcis.2024.04.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 03/25/2024] [Accepted: 04/08/2024] [Indexed: 04/15/2024]
Abstract
The host lattice environments of Sb3+ has a great influence on its photophysical properties. Here, we synthesized three zero-dimensional organic metal halides of (TPA)2SbCl5 (1), Sb3+-doped (TPA)SnCl5(H2O)·2H2O (Sb3+-2), and Sb3+-doped (TPA)2SnCl6 (Sb3+-3). Compared with the intense orange emission of 1, Sb3+-3 has smaller lattice distortion, thus effectively suppressing the exciton transformation from singlet to triplet self-trapped exciton (STE) states, which makes Sb3+-3 has stronger singlet STE emission and further bring a white emission with a photoluminescence quantum efficiency (PLQE) of 93.4%. Conversely, the non-emission can be observed in Sb3+-2 even though it has a similar [SbCl5]2- structure to 1, which should be due to its indirect bandgap characteristics and the effective non-radiative relaxation caused by H2O in the lattice. Interestingly, the non-emission of Sb3+-2 can convert into the bright emission of Sb3+-3 under TPACl DMF solution treatment. Meanwhile, the white emission under 315 nm excitation of Sb3+-3 can change into orange emission upon 365 nm irradiation, and the luminescence can be further quenched by the treatment of HCl. Therefore, a triple-mode reversible luminescence switch of off-onI-onII-off can be achieved. Finally, we demonstrated the applications of Sb3+-doped compounds in single-component white light illumination, latent fingerprint detection, fluorescent anti-counterfeiting, and information encryption.
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Affiliation(s)
- Linghang Kong
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, and School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Hui Peng
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, and School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China.
| | - Qilin Wei
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Qihua Liang
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, and School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Jialong Zhao
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, and School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Bingsuo Zou
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, and School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China.
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Parashar K, Zhang Z, Buturlim V, Jiang J, Roseborough A, Nyman M, Gofryk K, Pachter R, Saparov B. Structural and Physical Properties of Two Distinct 2D Lead Halides with Intercalated Cu(II). JOURNAL OF MATERIALS CHEMISTRY. C 2024; 12:9372-9384. [PMID: 39308752 PMCID: PMC11412573 DOI: 10.1039/d4tc01322k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/25/2024]
Abstract
Transition metal cation intercalation between the layers of two-dimensional (2D) metal halides is an underexplored research area. In this work we focus on the synthesis and physical property characterizations of two layered hybrid lead halides: a new compound [Cu(O2C-CH2-NH2)2]Pb2Br4 and the previously reported [Cu(O2C-(CH2)3-NH3)2]PbBr4. These compounds exhibit 2D layered crystal structures with incorporated Cu2+ between the metal halide layers, which is achieved by combining Cu(II) and lead bromide with suitable amino acid precursors. The resultant [Cu(O2C-(CH2)3-NH3)2]PbBr4 adopts a 2D layered perovskite structure, whereas the new compound [Cu(O2C-CH2-NH2)2]Pb2Br4 crystallizes with a new structure type based on edge-sharing dodecahedral PbBr5O3 building blocks. [Cu(O2C-CH2-NH2)2]Pb2Br4 is a semiconductor with a bandgap of 3.25 eV. It shows anisotropic charge transport properties with a semiconductor resistivity of 1.44×1010 Ω·cm (measured along the a-axis) and 2.17×1010 Ω·cm (along the bc-plane), respectively. The fabricated prototype detector based on this material showed response to soft low-energy X-rays at 8 keV with a detector sensitivity of 1462.7 μCGy-1cm-2, indicating its potential application for ionizing radiation detection. These encouraging results are discussed together with the results from density functional theory calculations, optical, magnetic, and thermal property characterization experiments.
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Affiliation(s)
- Kanika Parashar
- Department of Chemistry & Biochemistry, The University of Oklahoma, Norman, Oklahoma 73019-5251, United States
| | - Zheng Zhang
- Department of Chemistry, Tulane University, New Orleans, Louisiana 70118, United States
| | - Volodymyr Buturlim
- Glenn T. Seaborg Institute, Idaho National Laboratory, Idaho Falls, ID 83415, USA
| | - Jie Jiang
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, OH 45433, USA
| | | | - May Nyman
- Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, USA
| | - Krzysztof Gofryk
- Glenn T. Seaborg Institute, Idaho National Laboratory, Idaho Falls, ID 83415, USA
| | - Ruth Pachter
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, OH 45433, USA
| | - Bayram Saparov
- Department of Chemistry & Biochemistry, The University of Oklahoma, Norman, Oklahoma 73019-5251, United States
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Shen C, Chen H, Xu L, Wu K, Meng L, Zhang S, Wang J, Wang D. Ultra-Broad-Band-Excitable Cu-Based Halide (C 4H 10N) 4Cu 4I 8 with High Stability for LED Applications. Inorg Chem 2024; 63:3173-3180. [PMID: 38301606 DOI: 10.1021/acs.inorgchem.3c04318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Currently, organic-inorganic hybrid cuprous-based halides are receiving substantial attention for their eco-friendliness, distinctive structures, and outstanding photophysical properties. Nevertheless, most of the reported cuprous-based halides demand deep ultraviolet excitation with a narrow excitation range that can meet the commercial requirement. Herein, zero-dimensional (0D) cuprous-based halide (C4H10N)4Cu4I8 single crystals (SCs) were synthesized, with an ultrabroad band excitation ranging 260-450 nm and a greenish-yellow emission band peaking at 560 nm. Excitingly, (C4H10N)4Cu4I8 also features a large Stokes shift of 300 nm, a high photoluminescence quantum yield (PLQY) of up to 84.66%, and a long lifetime of 137 μs. Furthermore, density functional theory calculations were performed to explore the relationship between structure and photophysical properties, and the photoluminescence performance of (C4H10N)4Cu4I8 originates from the electron interactions in [Cu2I4]2- clusters. Taking advantage of broad band excitation and excellent photoluminescent performances, a high luminescence characteristic UV-pumped light-emitting diode (LED) device with remarkable color stability was fabricated by employing the as-synthesized (C4H10N)4Cu4I8 SCs, which present the promising applications of low-dimensional cuprous-based halides in solid-state lighting.
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Affiliation(s)
- Chuanying Shen
- School of Physics and Physical Engineering, Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, Qufu Normal University, Qufu 273165, P. R. China
| | - Hanzhang Chen
- School of Physics and Physical Engineering, Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, Qufu Normal University, Qufu 273165, P. R. China
| | - Longyun Xu
- School of Materials and Chemical Engineering, Henan University of Urban Construction, Pingdingshan 467000, China
| | - Kui Wu
- Institute of Crystal Materials, Shandong University, Jinan 250100, P. R. China
| | - Lingqiang Meng
- School of Advanced Material Peking University, Shenzhen Graduate School Peking University, Shenzhen 518055, P. R. China
| | - Shoubao Zhang
- School of Physics and Physical Engineering, Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, Qufu Normal University, Qufu 273165, P. R. China
| | - Jiyang Wang
- Institute of Crystal Materials, Shandong University, Jinan 250100, P. R. China
| | - Duanliang Wang
- School of Physics and Physical Engineering, Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, Qufu Normal University, Qufu 273165, P. R. China
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Pinky T, Popy DA, Zhang Z, Jiang J, Pachter R, Saparov B. Synthesis and Characterization of New Hybrid Organic-Inorganic Metal Halides [(CH 3) 3SO]M 2I 3 (M = Cu and Ag). Inorg Chem 2024; 63:2174-2184. [PMID: 38235735 DOI: 10.1021/acs.inorgchem.3c04119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
Recently, all-inorganic copper(I) metal halides have emerged as promising optical materials due to their high light emission efficiencies. This work details the crystal structure of the two hybrid organic-inorganic metal halides [(CH3)3SO]M2I3 (M = Cu and Ag) and their alloyed derivatives [(CH3)3SO]Cu2-xAgxI3 (x = 0.2; 1.25), which were obtained by incorporating trimethylsulfoxonium organic cation (CH3)3SO+ in place of Cs+ in the yellow-emitting all-inorganic CsCu2I3. These compounds are isostructural and centrosymmetric with the space group Pnma, featuring one-dimensional edge-sharing [M2I3]- anionic double chains separated by rows of (CH3)3SO+ cations. Based on density functional theory calculations, the highest occupied molecular orbitals (HOMOs) of [(CH3)3SO]M2I3 (M = Cu and Ag) are dominated by the Cu or Ag d and I p orbitals, while the lowest unoccupied molecular orbitals (LUMOs) are Cu or Ag s and I p orbitals. [(CH3)3SO]Cu2I3 single crystals exhibit a semiconductor resistivity of 9.94 × 109 Ω·cm. Furthermore, a prototype [(CH3)3SO]Cu2I3 single-crystal-based X-ray detector with a detection sensitivity of 200.54 uCGy-1 cm-2 (at electrical field E = 41.67 V/mm) was fabricated, indicating the potential use of [(CH3)3SO]Cu2I3 for radiation detection applications.
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Affiliation(s)
- Tamanna Pinky
- Department of Chemistry & Biochemistry, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Dilruba A Popy
- Department of Chemistry & Biochemistry, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Zheng Zhang
- Department of Chemistry, Tulane University, New Orleans, Louisiana 70118, United States
| | - Jie Jiang
- Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson Air Force Base, Dayton, Ohio 45433, United States
| | - Ruth Pachter
- Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson Air Force Base, Dayton, Ohio 45433, United States
| | - Bayram Saparov
- Department of Chemistry & Biochemistry, University of Oklahoma, Norman, Oklahoma 73019, United States
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