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Liu Y, Hu H, Qi H, Lv M, Liu Z. The Synthesis, Structure, and Dielectric Properties of a One-Dimensional Hydrogen-Bonded DL-α-Phenylglycine Supramolecular Crown-Ether-Based Inclusion Compound. Molecules 2023; 28:7586. [PMID: 38005309 PMCID: PMC10673173 DOI: 10.3390/molecules28227586] [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: 10/06/2023] [Revised: 11/03/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
A novel hydrogen-bonded supramolecular crown-ether-based inclusion compound, [(DL-α-Phenylglycine)(18-crown-6)]+[(CoCl4)0.5]-(1), was obtained via evaporation in a methanolic solution at room temperature using DL-α-phenylglycine, 18-crown-6, cobalt chloride (CoCl2), and hydrochloric acid. Its structure, thermal properties, and electrical properties were characterized via elemental analysis, single-crystal X-ray diffraction, variable-temperature infrared spectroscopy, thermogravimetric analysis, differential scanning calorimetry, and variable temperature-variable frequency dielectric constant testing. The compound was a monoclinic crystal system in the C2 space group at low temperature (100 K) and room temperature (293 K). Analysis of the single crystal structure showed that [(CoCl4)0.5]- presented an edge-sharing ditetrahedral structure in the disordered state, while the protonated DL-α-phenylglycine molecule in the disordered state and intramolecular hydroxyl group (-OH) underwent dynamic rocking, causing a significant stretching motion of the O-H···Cl-type one-dimensional hydrogen bond chain. This resulted in dielectric anomalies in the three axes of the crystal, thus showing significant dielectric anisotropy.
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Affiliation(s)
- Yang Liu
- Chemistry and Chemical Engineering College, Xinjiang Agricultural University, Urumqi 830052, China; (Y.L.); (H.H.); (H.Q.); (M.L.)
- 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
| | - Hongzhi Hu
- Chemistry and Chemical Engineering College, Xinjiang Agricultural University, Urumqi 830052, China; (Y.L.); (H.H.); (H.Q.); (M.L.)
| | - Huanhuan Qi
- Chemistry and Chemical Engineering College, Xinjiang Agricultural University, Urumqi 830052, China; (Y.L.); (H.H.); (H.Q.); (M.L.)
| | - Meixia Lv
- Chemistry and Chemical Engineering College, Xinjiang Agricultural University, Urumqi 830052, China; (Y.L.); (H.H.); (H.Q.); (M.L.)
| | - Zunqi Liu
- Chemistry and Chemical Engineering College, Xinjiang Agricultural University, Urumqi 830052, China; (Y.L.); (H.H.); (H.Q.); (M.L.)
- 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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Niu X, Zhao R, Yan S, Pang Z, Li H, Yang X, Wang K. Chiral Materials: Progress, Applications, and Prospects. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303059. [PMID: 37217989 DOI: 10.1002/smll.202303059] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 05/10/2023] [Indexed: 05/24/2023]
Abstract
Chirality is a universal phenomenon in molecular and biological systems, denoting an asymmetric configurational property where an object cannot be superimposed onto its mirror image by any kind of translation or rotation, which is ubiquitous on the scale from neutrinos to spiral galaxies. Chirality plays a very important role in the life system. Many biological molecules in the life body show chirality, such as the "codebook" of the earth's biological diversity-DNA, nucleic acid, etc. Intriguingly, living organisms hierarchically consist of homochiral building blocks, for example, l-amino acids and d-sugars with unknown reason. When molecules with chirality interact with these chiral factors, only one conformation favors the positive development of life, that is, the chiral host environment can only selectively interact with chiral molecules of one of the conformations. The differences in chiral interactions are often manifested by chiral recognition, mutual matching, and interactions with chiral molecules, which means that the stereoselectivity of chiral molecules can produce changes in pharmacodynamics and pathology. Here, the latest investigations are summarized including the construction and applications of chiral materials based on natural small molecules as chiral source, natural biomacromolecules as chiral sources, and the material synthesized by design as a chiral source.
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Affiliation(s)
- Xiaohui Niu
- College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou, 730050, P. R. China
| | - Rui Zhao
- College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou, 730050, P. R. China
| | - Simeng Yan
- College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou, 730050, P. R. China
| | - Zengwei Pang
- College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou, 730050, P. R. China
| | - Hongxia Li
- College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou, 730050, P. R. China
| | - Xing Yang
- College of Polymer Science and Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Kunjie Wang
- College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou, 730050, P. R. China
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Li YK, Ying TT, Zhang H, Tan YH, Tang YZ, Wang FX, Wan MY. Unusual symmetry breaking in high-temperature enantiomeric ferroelectrics with large spontaneous polarization. Dalton Trans 2022; 51:6860-6867. [PMID: 35438712 DOI: 10.1039/d2dt00592a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chiral organic-inorganic hybrid perovskites have gained extensive research interest due to their combination of chirality and the excellent optical, electrical and spin properties of perovskite materials, especially in two-dimensional hybrid perovskites. Herein, we report two-dimensional organic-inorganic perovskite enantiomeric ferroelectric [(R)-β-MPA]2CdCl4 (1) and [(S)-β-MPA]2CdCl4 (2) (MPA+ =methylphenethylammonium). Their mirror relationships are verified by both circular dichroism (CD) and crystal structures. At the same time, the two exhibit very similar ferroelectricity and related properties, including high Curie temperature (343 K), large spontaneous polarization (4.65 μC cm-2), and low coercive force field (13 kV cm-1). Unusually, at room temperature the crystal phase is monoclinic with the space group C2 and above the phase transition temperature it is triclinic with the space group P1, which means that the symmetry decreases with the increase of temperature. In addition, it exhibits a flexible switchable SHG response, while [(R)-β-MPA]2CdCl4 and [(S)-β-MPA]2CdCl4 have wide band gaps of 4.21 and 4.26 eV, respectively, mainly contributed by inorganic CdCl6 octahedra. This discovery opens a new way for the construction of two-dimensional enantiomeric molecular ferroelectrics.
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Affiliation(s)
- Yu-Kong Li
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Department of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, People's Republic of China.
| | - Ting-Ting Ying
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Department of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, People's Republic of China.
| | - Hao Zhang
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Department of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, People's Republic of China.
| | - Yu-Hui Tan
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Department of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, People's Republic of China.
| | - Yun-Zhi Tang
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Department of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, People's Republic of China.
| | - Fang-Xin Wang
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Department of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, People's Republic of China.
| | - Ming-Yang Wan
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Department of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, People's Republic of China.
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Hua XN, Zhang WY, Shi PP. Two-step nonlinear optical switch in a hydrogen-bonded perovskite-type crystal. Chem Commun (Camb) 2022; 58:1712-1715. [PMID: 35023514 DOI: 10.1039/d1cc06306e] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Switchable nonlinear optical (NLO) materials have aroused broad interest on account of their captivating optical and electronic properties. We demonstrate a novel perovskite-type crystal with exceptional hydrogen bond interactions that are associated with the onset of reorientational motions of organic cations and thus induce the occurrence of two successive phase transitions to be a two-step NLO switch. This finding affords an alternative approach for the design and assembly of switchable NLO materials.
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Affiliation(s)
- Xiu-Ni Hua
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, P. R. China.
| | - Wan-Ying Zhang
- School of Science, Bengbu University, Bengbu, 233030, P. R. China.
| | - Ping-Ping Shi
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, P. R. China.
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Wang Y, Sun D, Meng F, Dang Y, Shen C, Wang D. The synthesis, structures, high thermal stability and photoluminescence of two new crown ether clathrates. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.120842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Li YK, Lai YY, Ying TT, Han DC, Tan YH, Tang YZ, Du PK, Zhang H. A multifunctional molecular ferroelectric with chiral features, a high Curie temperature, large spontaneous polarization and photoluminescence: (C 9H 14N) 2CdBr 4. Chem Sci 2021; 12:13061-13067. [PMID: 34745536 PMCID: PMC8513930 DOI: 10.1039/d1sc03964d] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 09/05/2021] [Indexed: 11/23/2022] Open
Abstract
Low-dimensional chiral organic-inorganic hybrid metal halides have attracted a lot of attention in recent years due to their unique intrinsic properties, including having potential applications in optoelectronic and spintronic devices. However, low-dimensional chiral molecular ferroelectrics are very rare. In this paper, we report a novel zero-dimensional molecular ferroelectric (C9H14N)2CdBr4 (C9H14N+ = protonated 3-phenylpropylamine), which has obvious dielectric and thermal anomalies and shows a high Curie temperature at 395 K. It crystallizes in the P21 space group at room temperature, showing a strong CD signal, large spontaneous polarization (P s = 13.5 μC cm-2), and a clear ferroelectric domain. In addition, it also exhibits a flexible SHG response. The photoluminescence spectrum shows that 1 has broadband luminescence. At the same time, compound 1 has a wide band gap, which is mainly contributed to by the inorganic CdBr4 tetrahedron. The high tunability of low-dimensional chiral molecular ferroelectrics also opens up a way to explore multifunctional chiral materials.
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Affiliation(s)
- Yu-Kong Li
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology Ganzhou 341000 Jiangxi Province P. R. China
| | - Yuan-Yuan Lai
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology Ganzhou 341000 Jiangxi Province P. R. China
| | - Ting-Ting Ying
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology Ganzhou 341000 Jiangxi Province P. R. China
| | - Ding-Chong Han
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology Ganzhou 341000 Jiangxi Province P. R. China
| | - Yu-Hui Tan
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology Ganzhou 341000 Jiangxi Province P. R. China
| | - Yun-Zhi Tang
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology Ganzhou 341000 Jiangxi Province P. R. China
| | - Peng-Kang Du
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology Ganzhou 341000 Jiangxi Province P. R. China
| | - Hao Zhang
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology Ganzhou 341000 Jiangxi Province P. R. China
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Song N, Dong XX, Zhuang JC, Li YK, Han DC, Tan YH, Wei WJ, Tang YZ. Coupling Narrow Band Gap and Switchable SHG Responses in a New Molecule Ferroelectric: Imidazolyl Propylamine Pentabromo Stibium(III). Inorg Chem 2021; 60:1195-1201. [PMID: 33356190 DOI: 10.1021/acs.inorgchem.0c03309] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Due to the existence of some cross properties such as SHG (second-harmonic generation), ferroelectricity, piezoelectricity, and thermoelectricity, molecular ferroelectrics have been widely used as a composite multipurpose material. Particularly, organic-inorganic molecular ferroelectrics have received much interest recently because of their unique flexible structures, friendly environment, ease of synthesis, etc. Also, these hybrids show great flexibility in band-gap engineering. Here we report a new molecular halide, [C6H13N3SbBr5]n (1; C6H13N3 = 1-(3-aminopropyl)imidazole), which experiences a unique ferroelectric to paraelectric phase transition at around 230 K from space group P21 to P21/c. Significantly, compound 1 exhibits a narrow band gap with a value of 2.52 eV, large pronounced SHG-active, perfect rectangle hysteresis loops with a large spontaneous polarization of 6.86 μC/cm2. DSC (differential scanning calorimetry) and dielectric dependence on temperature tests and the volume change before and after the phase transition show that compound 1 is characterized by a second-order phase transition. These findings will contribute to the multifunctional materials field of organic-inorganic hybrids.
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Affiliation(s)
- Ning Song
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, People's Republic of China
| | - Xing-Xian Dong
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, People's Republic of China
| | - Jia-Chang Zhuang
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, People's Republic of China
| | - Yu-Kong Li
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, People's Republic of China
| | - Ding-Chong Han
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, People's Republic of China
| | - Yu-Hui Tan
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, People's Republic of China
| | - Wen-Juan Wei
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, People's Republic of China
| | - Yun-Zhi Tang
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, People's Republic of China
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