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Liu Y, Abuduheni A, Yang F, Hu H, Liu Z. Synthesis, the Reversible Isostructural Phase Transition, and the Dielectric Properties of a Functional Material Based on an Aminobenzimidazole-Iron Thiocyanate Complex. Int J Mol Sci 2024; 25:9064. [PMID: 39201750 DOI: 10.3390/ijms25169064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2024] [Revised: 08/15/2024] [Accepted: 08/16/2024] [Indexed: 09/03/2024] Open
Abstract
By introducing disordered molecules into a crystal structure, the motion of the disordered molecules easily induces the formation of multidimensional frameworks in functional crystal materials, allowing for structural phase transitions and the realization of various dielectric properties within a certain temperature range. Here, we prepared a novel ionic complex [C7H8N3]3[Fe(NCS)6]·H2O (1) between 2-aminobenzimidazole and ferric isothiocyanate from ferric chloride hexahydrate, ammonium thiocyanate, and 2-aminobenzimidazole using the evaporation of the solvent method. The main components, the single-crystal structure, and the thermal and dielectric properties of the complex were characterized using infrared spectroscopy, elemental analysis, single-crystal X-ray diffraction, powder XRD, thermogravimetric analysis, differential scanning calorimetry, variable-temperature and variable-frequency dielectric constant tests, etc. The analysis results indicated that compound 1 belongs to the P21/n space group. Within the crystal structure, the [Fe(NCS)6]3- anion formed a two-dimensional hydrogen-bonded network with the organic cation through S···S interactions and hydrogen bonding. The disorder-order motion of the anions and cations within the crystal and the deformation of the crystal frameworks lead to a significant reversible isostructural phase transition and multiaxial dielectric anomalies of compound 1 at approximately 240 K.
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Affiliation(s)
- Yang Liu
- Chemistry and Chemical Engineering College, Xinjiang Agricultural University, Urumqi 830052, China
- Xinjiang Sub-Center National Engineering Research Center of Novel Equipment for Polymer Processing, Urumqi 830052, China
- Xinjiang Key Laboratory of Agricultural Chemistry and Biomaterials, Urumqi 830052, China
| | - Adila Abuduheni
- Chemistry and Chemical Engineering College, Xinjiang Agricultural University, Urumqi 830052, China
| | - Fang Yang
- Chemistry and Chemical Engineering College, Xinjiang Agricultural University, Urumqi 830052, China
| | - Hongzhi Hu
- Chemistry and Chemical Engineering College, Xinjiang Agricultural University, Urumqi 830052, China
- Xinjiang Sub-Center National Engineering Research Center of Novel Equipment for Polymer Processing, Urumqi 830052, China
| | - Zunqi Liu
- Chemistry and Chemical Engineering College, Xinjiang Agricultural University, Urumqi 830052, China
- Xinjiang Sub-Center National Engineering Research Center of Novel Equipment for Polymer Processing, Urumqi 830052, China
- Xinjiang Key Laboratory of Agricultural Chemistry and Biomaterials, Urumqi 830052, China
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Zhang X, Hua XN, Huo P, Wang L, Shi X, Cai Z, Zhang Y, Zhang D, Yu SS. Second-Order Nonlinear Switching and Photoluminescence Properties of Cd-Based Hybrid Perovskite with High-Temperature Phase Transition. Inorg Chem 2024; 63:15154-15160. [PMID: 39080828 DOI: 10.1021/acs.inorgchem.4c02494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/13/2024]
Abstract
Recently, organic-inorganic hybrid perovskites exhibiting facile structural phase transitions have accumulated significant attention due to their switchable second-order nonlinear optical (NLO) properties, which hold significant promise for next-generation intelligent optoelectronic devices. In this study, we present a novel one-dimensional hexagonal hybrid perovskite, (4-methoxypiperidinium)CdCl3, which undergoes a reversible high-temperature structural phase transition at 389 K. Notably, (4-methoxypiperidinium)CdCl3 demonstrates switchable second-order NLO and dielectric properties, accompanied by symmetry breaking from the centrosymmetric Pnma to noncentrosymmetric Pna21 space group. Variable-temperature structure analyses reveal that this transition is mainly driven by the order-disorder transformation of the 4-methoxypiperidinium cations. Furthermore, it also features a promising photoluminescence performance with blue-light emission and a long lifetime of 25.34 ns. It is anticipated that this study will expand the family of hybrid perovskites exhibiting high-temperature phase transitions and offer valuable guidance for the design of new NLO switching materials with superior optoelectronic properties.
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Affiliation(s)
- Xiang Zhang
- School of Environmental Science, Nanjing Xiaozhuang University, Nanjing 211171, P. R. China
| | - Xiu-Ni Hua
- School of Environmental Science, Nanjing Xiaozhuang University, Nanjing 211171, P. R. China
| | - Pingxin Huo
- School of Environmental Science, Nanjing Xiaozhuang University, Nanjing 211171, P. R. China
| | - Li Wang
- School of Environmental Science, Nanjing Xiaozhuang University, Nanjing 211171, P. R. China
| | - Xian Shi
- School of Environmental Science, Nanjing Xiaozhuang University, Nanjing 211171, P. R. China
| | - Zhuoer Cai
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China
| | - Yinan Zhang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China
| | - Dunpu Zhang
- School of Environmental Science, Nanjing Xiaozhuang University, Nanjing 211171, P. R. China
| | - Shan-Shan Yu
- School of Environmental Science, Nanjing Xiaozhuang University, Nanjing 211171, P. R. China
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Han XB. Coupled Kite-to-Square Distortion Transition and Physical Properties in 2D Lead Halide Perovskite. J Phys Chem Lett 2024:7979-7991. [PMID: 39078198 DOI: 10.1021/acs.jpclett.4c01371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/31/2024]
Abstract
2D lead halide perovskites showcase diverse electrical and optoelectrical properties due to their adaptable structural distortion, which dictates the symmetry characteristics of the material. To accommodate the geometric shape of the cation, the inorganic layer of the 2D perovskite often undergoes specific distortions such as lead-halide bond length elongation/compression and lead atom displacement. The resultant distortion manifests as a quadrilateral shape formed by Pb atoms from four adjacent four octahedrons. The degree of distortion increases as the quadrilateral deviates further from a square shape and vice versa. This quadrilateral shape not only visually represents the magnitude of distortion but also confirms its direction. During the transition from kite to square distortion under external stimuli, the positions of the Pb atoms vividly illustrate the symmetry-breaking process, corresponding to a shift from high to low symmetry states. The electrical and optoelectronic properties, including ferroelectricity, pyroelectricity, piezoelectricity, nonlinear optical properties, and characteristics related to bulky photovoltaic effects, some of them exhibit direction dependence nature. This perspective employed a visible structural distortion approach to elucidate symmetry breaking and coupling distortion transitions with eight optoelectronic physical properties in 2D layered perovskite. We review recent research advancements and outline current challenges that help us to understand the structure-property relationship of 2D perovskite.
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Affiliation(s)
- Xiang-Bin Han
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics and School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
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Wan MY, Wang ZY, Li QL, Wang FX, Liao J, Wang LJ, Tang YZ, Tan YH. Investigating the Structure-property Relationships of Two Cd-based Hybrid Multifunctional Compounds with High Tc, Bright Fluorescence and Wide Band-gap. Chemistry 2024; 30:e202303717. [PMID: 38072903 DOI: 10.1002/chem.202303717] [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: 11/08/2023] [Indexed: 01/09/2024]
Abstract
Organic-inorganic hybrid multifunctional materials have shown significant application in lighting and sensor fields, owing to their prominent performance and diversity structures. Herein, we synthesized two multifunctional compounds: (propyl-quinuclidone)2 CdBr4 (1) and (F-butyl-quinuclidone)2 CdBr4 (2). By introducing light-emitting organic cation with flexible long chain, 1 and 2 exhibit excellent transition properties and bright blue-white fluorescence. Then, combine fluorescence lifetime and first-principal calculation, providing evidence for the electron transfer emission. Subsequently, investigated the impact of substituent carbon chain length (methyl to butyl), structural rigidity (C-C to C-F) and halide framework (Cl to I) on the fluorescence properties. Results indicate that Cd⋅⋅⋅Cd distance and structural rigidity play an important role in fluorescence. Overall, our research provides valuable insight and example for chemical modifications enhance compound performance.
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Affiliation(s)
- Ming-Yang Wan
- Key Laboratory of Development and Application of Ionic Rare Earth Resource, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China
| | - Zhi-Ying Wang
- Key Laboratory of Development and Application of Ionic Rare Earth Resource, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China
| | - Qing-Lian Li
- Key Laboratory of Development and Application of Ionic Rare Earth Resource, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China
| | - Fang Xin Wang
- Key Laboratory of Development and Application of Ionic Rare Earth Resource, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China
| | - Juan Liao
- Key Laboratory of Development and Application of Ionic Rare Earth Resource, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China
| | - Li-Juan Wang
- Key Laboratory of Development and Application of Ionic Rare Earth Resource, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China
| | - Yun-Zhi Tang
- Key Laboratory of Development and Application of Ionic Rare Earth Resource, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China
| | - Yu-Hui Tan
- Key Laboratory of Development and Application of Ionic Rare Earth Resource, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China
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Wan MY, Liu WF, Luo JL, Liao J, Wang FX, Wang LJ, Tang YZ, Tan YH. Silver/Antimony-Base Multifunctional Double Perovskite with H/F Substitution Enhance Properties. Inorg Chem 2024; 63:3083-3090. [PMID: 38278552 DOI: 10.1021/acs.inorgchem.3c04047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2024]
Abstract
Two-dimensional double perovskites have experienced rapid development due to their outstanding optoelectronic properties and diverse structural characteristics. However, the synthesis of high-performance multifunctional compounds and the regulation of their properties still lack relevant examples. Herein, we synthesized two multifunctional compounds, (C6H14N)4AgSbBr8 (1) and (F2-C6H12N)4AgSbBr8 (2), which exhibit high solid-state phase transition temperature, bistable dielectric constant switching, second harmonic generation (SHG), and bright emission. Through H/F substitution, the transition temperature increases and achieves a smaller band gap attributed to reduced interlayer spacing. Furthermore, we investigated the broad emission mechanism of the compounds through first-principles calculation and variable-temperature fluorescence, confirming the presence of the STE1 emission. Our work provides insight into the further development of multifunctional compounds and chemical modification that enhances compound properties.
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Affiliation(s)
- Ming-Yang Wan
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, PR China
| | - Wei-Fei Liu
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, PR China
| | - Jin Lin Luo
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, PR China
| | - Juan Liao
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, PR China
| | - Fang Xin Wang
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, PR China
| | - Li-Juan Wang
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, PR China
| | - Yun-Zhi Tang
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, PR China
| | - Yu-Hui Tan
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, PR China
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