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Huang YL, Ying TT, Zhao YR, Tang YZ, Tan YH, Li QL, Liu WF, Wan MY, Wang FX. Zero-Dimensional Sn-Based Enantiomeric Phase-Transition Materials with High-Tc and Dielectric Switching. Chemistry 2023; 29:e202301499. [PMID: 37493075 DOI: 10.1002/chem.202301499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 07/25/2023] [Accepted: 07/26/2023] [Indexed: 07/27/2023]
Abstract
The combination of chirality and phase-transition materials has broad application prospects. Therefore, based on the quasi-spherical theory and the thought strategy of introducing chirality, we have successfully synthesized a pair of chiral enantiomeric ligands (R/S)-triethyl-(2-hydroxypropyl)ammonium iodide, which can be combined with a tin hexachloride anion to obtain a pair of new organic-inorganic hybrid enantiomeric high-temperature plastic phase-transition materials: (R/S)-[CH3 CH(OH)CH2 N(CH2 CH3 )3 ]2 SnCl6 (1-R/1-S), which have a high temperature phase transition of Tc =384 K, crystallize in the P21 chiral space group at room temperature, and have obvious CD signals. In addition, compounds 1-R and 1-S have a good low-loss dielectric switch and broadband gap. This work is conducive to the research into chiral high-temperature reversible plastic phase-transition materials, and promotes the development of multi-functional phase-transition materials.
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Affiliation(s)
- Yan-Le Huang
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, P. R. China
| | - Ting-Ting Ying
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, P. R. China
| | - Yi-Ran Zhao
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, P. R. China
| | - Yun-Zhi Tang
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, P. R. China
| | - Yu-Hui Tan
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, P. R. China
| | - Qiao-Lin Li
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, P. R. China
| | - Wei-Fei Liu
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, P. R. China
| | - Ming-Yang Wan
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, P. R. China
| | - Fang-Xin Wang
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, P. R. China
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2
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Song N, Ying TT, Tan YH, Tang YZ, Liao J, Wang LJ, Wang FX, Wan MY. 2-Chloroethylamine·trifluoromethanesulfonate combined with 18-crown-6: a ferroelectric with excellent dielectric switching properties. Dalton Trans 2023; 52:11196-11202. [PMID: 37522327 DOI: 10.1039/d3dt01426f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/01/2023]
Abstract
Ferroelectric materials are not only important electronic functional materials, but also considered as the most promising intelligent basic materials, because they show good application prospects. Therefore, it is an urgent task to develop and explore new ferroelectric material systems. In addition, the most important feature of crown ethers is their ability to complex with positive ions, which is extremely useful in synthesis. We report that [NH3C2H4Cl(18-crown-6)](CF3SO3) (1) has a phase transition temperature Tc = 255 K, and there is an obvious SHG switch below Tc. At the same time, the saturation polarization value Ps = 1.25 μC cm-2 is obtained from the hysteresis loop, which directly proves the ferroelectric nature of compound 1. It is noteworthy that the second harmonic response test of compound 1 shows a symmetric transition from a non-centrosymmetric to a centrosymmetric point group, that is a symmetry break from the paraelectric phase to the ferroelectric phase. This work is expected to promote the further exploration of organic crown ether ferroelectrics and provide a way to design and synthesize organic crown ether ferroelectrics.
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Affiliation(s)
- Ning Song
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Faculty of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China.
| | - Ting-Ting Ying
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Faculty of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China.
| | - Yu-Hui Tan
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Faculty of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China.
| | - Yun-Zhi Tang
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Faculty of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China.
| | - Juan Liao
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Faculty of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China.
| | - Li-Juan Wang
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Faculty of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China.
| | - Fang-Xin Wang
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Faculty of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China.
| | - Ming-Yang Wan
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Faculty of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China.
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3
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Ying TT, Shi HJ, Chen SP, Tang YZ, Tan YH, Wang SF, Sun Z, Wang FX, Wan MY. Large Spontaneous Polarization Ferroelectric Property, Switchable Second-Harmonic Generation Responses, and Magnetism in an Fe-Based Compound. Inorg Chem 2023; 62:6189-6195. [PMID: 37014228 DOI: 10.1021/acs.inorgchem.3c00569] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Abstract
Since the switchable spontaneous polarization of ferroelectric materials endows it with many useful properties such as a large pyroelectric coefficient, switchable spontaneous polarization, and semiconductor, it has a wide range of application prospects, and the research of high-performance molecular ferroelectric materials has become a hot spot. We obtained a 0D organic-inorganic hybrid ferroelectric [(CH3)3NCH2CH2CH3]2FeCl4 (1) with well-defined ferroelectric domains and excellent domain inversion and exhibited a relatively large spontaneous polarization (Ps = 9 μC/m-2) and a Curie temperature (Tc) of 394 K. Furthermore, compound 1 belongs to the non-centrosymmetrical space group Cmc21 and has a strong second-harmonic generation signal. Interestingly, we also performed magnetic tests on 1, which confirmed that it is a magnetic material. This work provides clues for exploring the application of high-performance molecular ferroelectric materials in future multifunctional smart devices.
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Affiliation(s)
- Ting-Ting Ying
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Hui-Juan Shi
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Shao-Peng Chen
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Yun-Zhi Tang
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Yu-Hui Tan
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Su-Fen Wang
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Zhen Sun
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Fang Xin Wang
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Ming-Yang Wan
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
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4
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Ying TT, Wan MY, Wang FX, Zhang Y, Tang YZ, Tan YH, Liao J, Wang LJ. High-T c 1D Phase-Transition Semiconductor Photoluminescent Material with Broadband Emission. Chemistry 2023; 29:e202203893. [PMID: 36579748 DOI: 10.1002/chem.202203893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 12/26/2022] [Accepted: 12/29/2022] [Indexed: 12/30/2022]
Abstract
One dimensional (1D) organic-inorganic halide hybrid perovskites have the advantages of excellent organic cation modifiability and diversity of inorganic framework structures, which cannot be ignored in the development of multi-functional phase-transition materials in photoelectric and photovoltaic devices. Here, we have successfully modified and synthesized an organic-inorganic hybrid perovskite photoelectric multifunctional phase-transition material: [C7 H13 ONCH2 F]⋅PbBr3 (1). The synergistic effect of the order double disorder transition of organic cations and the change of the degree of distortion of the inorganic framework leads to its high temperature reversible phase-transition point of Tc =374 K/346 K and its ultra-low loss high-quality dielectric switch response. Through in-depth research and calculation, compound 1 also has excellent semiconductor characteristics with a band gap of 3.06 eV and the photoluminescence characteristics of self-trapped exciton (STE) broadband emission. Undoubtedly, this modification strategy provides a new choice for the research field of organic-inorganic hybrid perovskite reversible phase-transition photoelectric multifunctional materials with rich coupling properties.
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Affiliation(s)
- Ting-Ting Ying
- Jiangxi Provincial Key Laboratory of, Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, China
| | - Ming-Yang Wan
- Jiangxi Provincial Key Laboratory of, Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, China
| | - Fang-Xin Wang
- Jiangxi Provincial Key Laboratory of, Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, China
| | - Yu Zhang
- Jiangxi Provincial Key Laboratory of, Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, China
| | - Yun-Zhi Tang
- Jiangxi Provincial Key Laboratory of, Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, China
| | - Yu-Hui Tan
- Jiangxi Provincial Key Laboratory of, Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, China
| | - Juan Liao
- Jiangxi Provincial Key Laboratory of, Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, China
| | - Li-Juan Wang
- Jiangxi Provincial Key Laboratory of, Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, China
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5
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Ying TT, Tang YZ, Tan YH, Wang JY, Zhao YR, Fan XW, Wang FX, Wan MY. A novel Cd-based multifunctional high temperature phase transition material: [(CH2CH3)3NCH2Cl]2CdBr4. Inorganica Chim Acta 2023. [DOI: 10.1016/j.ica.2022.121254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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6
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Ying T, Tan Y, Tang Y, Fan X, Wang F, Wan M, Liao J, Huang Y. High-Tc Quadratic Nonlinear Optical and Dielectric Switchings in Fe-Based Plastic Crystalline Ferroelectric. Inorg Chem 2022; 61:20608-20615. [DOI: 10.1021/acs.inorgchem.2c03486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Affiliation(s)
- TingTing Ying
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - YuHui Tan
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - YunZhi Tang
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - XiaoWei Fan
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - FangXin Wang
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - MingYang Wan
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Juan Liao
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - YanLe Huang
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
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7
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Li YK, Tan YH, Tang YZ, Fan XW, Wang SF, Ying TT, Zhang H. Unusual high-temperature host–guest inclusion compound-based ferroelectrics with nonlinear optical switching and large spontaneous polarization behaviours. Inorg Chem Front 2022. [DOI: 10.1039/d2qi01020h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Host–guest inclusion compound-based ferroelectrics [Hcta-(18-crown-6)]+[BF4]− (1) and [Hcta-(18-crown-6)]+[ClO4]− (2) with a high Curie temperature (Tc = 403/394 K) and large spontaneous polarization (Ps = 5.7/4.7 μC cm−2) are reported.
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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
| | - 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
| | - Xiao-Wei Fan
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, P.R. China
| | - Su-Fen Wang
- 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
| | - 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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9
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Han DC, Tan YH, Wu WC, Li YK, Tang YZ, Zhuang JC, Ying TT, Zhang H. High-Temperature Phase Transition Containing Switchable Dielectric Behavior, Long Fluorescence Lifetime, and Distinct Photoluminescence Changes in a 2D Hybrid CuBr 4 Perovskite. Inorg Chem 2021; 60:18918-18923. [PMID: 34872246 DOI: 10.1021/acs.inorgchem.1c02720] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A novel organic-inorganic hybrid perovskite crystal, [ClC6H4(CH2)2NH3]2CuBr4 (1), having experienced an invertible high-temperature phase transition near Tc (the Curie temperature Tc = 355 K), has been successfully synthesized. The phase-transition characteristics for compound 1 are thoroughly revealed by specific heat capacity (Cp), differential thermal analysis, and differential scanning calorimetry tests, possessing 16 K broad thermal hysteresis. Multiple-temperature powder X-ray diffraction analysis further proves the phase-transition behavior of compound 1. Moreover, compound 1 exhibits a significant steplike dielectric response near Tc, revealing that it can be deemed to be a promising dielectric switching material. The variable-temperature fluorescence experiments show distinct photoluminescence (PL) changes of compound 1. Further investigation and calculation disclose that the fluorescence lifetime of compound 1 can reach as long as 55.46 μs, indicating that it can be a potential PL material. All of these researches contribute a substitutable avenue in the design and construction of neoteric phase-transition compounds combining high Curie temperature and PL properties.
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Affiliation(s)
- 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
| | - Wei-Chao Wu
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, P. R. China
| | - Yu-Kong Li
- 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
| | - Jia-Chang Zhuang
- 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
| | - 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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10
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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11
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Liu Y, Li YK, Ying TT, Tan YH, Tang YZ, Han DC, Du PK, Zhang H. Multisequential reversible phase transition materials with semiconducting and fluorescence properties: (C 8H 18BrN) 2SnBr 6. NEW J CHEM 2021. [DOI: 10.1039/d1nj04448f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel organic–inorganic hybrid metal halide has synthesized, namely (C8H18BrN)2SnBr6 (1), which have excellent switchable dielectric properties, narrow band gap and broadband yellow fluorescence characteristics.
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Affiliation(s)
- Yao Liu
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, P. R. China
| | - Yu-Kong Li
- 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
| | - 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
| | - Ding-Chong Han
- 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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12
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Zheng X, Wei XY, Zhu J, Yuan Y, Ying TT, Li ST. Microvascular Decompression Alone without Rhizotomy Is an Effective Way of Treating Glossopharyngeal Neuralgia: Clinical Analysis of 46 Cases. Stereotact Funct Neurosurg 2020; 98:129-135. [PMID: 32101860 DOI: 10.1159/000505712] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Accepted: 12/31/2019] [Indexed: 01/19/2023]
Abstract
BACKGROUND Microvascular decompression (MVD) has been the right choice for glossopharyngeal neuralgia (GPN) patients. However, whether glossopharyngeal/vagal nerve root rhizotomy should be combined with MVD is still controversial. OBJECTIVE To evaluate whether glossopharyngeal/vagal nerve root rhizotomy during MVD is necessary for the treatment of GPN. METHODS We performed a retrospective study of 46 GPN patients who underwent MVD surgery alone in our hospital, and their patient demographics, clinical presentations, and intraoperative findings are shown. The immediate and long-term follow-up outcomes were investigated to show the treatment's efficiency and safety; the outcome was also compared with our previous study. The relevant literature was reviewed to show complications for GPN patients undergoing glossopharyngeal/vagal nerve root rhizotomy with MVD. RESULTS The most common offending vessel was the posterior inferior cerebellar artery (60.9%). 100% of the patients were pain-free (score of I on the Barrow Neurological Institute pain intensity [BNI-P] scale) immediately after MVD surgery, while 1 patient relapsed with occasional pain 12 months after the operation (score of III on the BNI-P scale). Poor wound healing and hearing loss were found in 1 case each. No complications related to the glossopharyngeal nerve/vagal nerve were reported. Some surgical techniques, such as thorough exploration of the CN IX-X rootlets, full freeing from arachnoid adhesions, and usage of a moist gelatin sponge, can improve the success rate of the operation. CONCLUSIONS MVD alone without rhizotomy is an effective and safe method for patients with GPN.
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Affiliation(s)
- Xuan Zheng
- Department of Neurosurgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Center for Diagnosis and Treatment of Cranial Nerve Diseases, Shanghai Jiaotong University, Shanghai, China
| | - Xiang-Yu Wei
- Department of Neurosurgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Center for Diagnosis and Treatment of Cranial Nerve Diseases, Shanghai Jiaotong University, Shanghai, China
| | - Jin Zhu
- Department of Neurosurgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Center for Diagnosis and Treatment of Cranial Nerve Diseases, Shanghai Jiaotong University, Shanghai, China
| | - Yan Yuan
- Department of Neurosurgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Center for Diagnosis and Treatment of Cranial Nerve Diseases, Shanghai Jiaotong University, Shanghai, China
| | - Ting-Ting Ying
- Department of Neurosurgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Center for Diagnosis and Treatment of Cranial Nerve Diseases, Shanghai Jiaotong University, Shanghai, China
| | - Shi-Ting Li
- Department of Neurosurgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China, .,Center for Diagnosis and Treatment of Cranial Nerve Diseases, Shanghai Jiaotong University, Shanghai, China,
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Zhao H, Zhang X, Tang YD, Zhang Y, Ying TT, Zhu J, Li ST. Operative Complications of Microvascular Decompression for Hemifacial Spasm: Experience of 1548 Cases. World Neurosurg 2017; 107:559-564. [PMID: 28823667 DOI: 10.1016/j.wneu.2017.08.028] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 08/03/2017] [Accepted: 08/04/2017] [Indexed: 11/18/2022]
Abstract
BACKGROUND Although microvascular decompression (MVD) surgery is considered the gold standard treatment for hemifacial spasm, there are some MVD-related complications. METHODS We retrospectively reviewed 1548 patients with hemifacial spasm who underwent retromastoid suboccipital craniectomy with MVD from January 2009 to June 2013. All patients were followed for >2 years. RESULTS Excellent and good results were 92.5% and 4.2%, respectively. Postoperative complications were recorded in 16.09% (n = 249). There was no MVD-related mortality. After MVD surgery, the most frequent complications were occipital sensory disturbance (7.3%), facial nerve palsy (9.7%), and hearing impairment (3.5%). Other complications were as follows: cerebrospinal fluid leakage (n = 24), poor healing wound (n = 14), lower cranial nerve palsy (n = 12), wound infection (n = 4), and hemorrhage (n = 2). CONCLUSIONS MVD operation is a safe treatment for hemifacial spasm. Facial nerve palsy is the most common MVD-related complication; preservation of the lesser occipital nerve during MVD surgery can decrease the rate of occipital sensory disturbance. Permanent or serious complications are comparatively rare in MVD surgery.
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Affiliation(s)
- Hua Zhao
- Department of Neurosurgery, XinHua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xin Zhang
- Department of Neurosurgery, XinHua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yin-da Tang
- Department of Neurosurgery, XinHua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ying Zhang
- Department of Orthopedics, XinHua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ting-Ting Ying
- Department of Neurosurgery, XinHua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jin Zhu
- Department of Neurosurgery, XinHua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Shi-Ting Li
- Department of Neurosurgery, XinHua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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Zhao H, Zhang X, Zhang Y, Tang YD, Zhu J, Wang XH, Ying TT, Li ST. Results of Atypical Hemifacial Spasm with Microvascular Decompression: 14 Case Reports and Literature Review. World Neurosurg 2017; 105:605-611. [PMID: 28619495 DOI: 10.1016/j.wneu.2017.06.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 06/02/2017] [Accepted: 06/05/2017] [Indexed: 10/19/2022]
Abstract
BACKGROUND Few studies have examined atypical hemifacial spasm (AHFS), and the mechanism of AHFS remains unclear. In this study, we examined the etiology, prognosis, and treatment of AHFS. METHODS We retrospectively analyzed the clinical data for 14 consecutive patients that underwent microvascular decompression (MVD) for AHFS between January 2014 and December 2015. Clinical features, outcomes, and complications were evaluated. RESULTS The incidence of AHFS is 1.52%. There were no significant differences in sex, age, side and duration between the typical hemifacial spasm and AHFS. During the follow-up period, the effective rate of MVD for patients with AHFS was 92.3%. Three patients developed delayed facial nerve palsy postoperatively, 1 patient experienced occipital sensory disturbance, and 1 patient suffered hearing loss. CONCLUSIONS Most of the cases of AHFS studied here were caused by neurovascular conflict in zone IV of the facial nerve distal to the root entry zone. MVD surgery is the first choice treatment for AHFS.
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Affiliation(s)
- Hua Zhao
- Department of Neurosurgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xin Zhang
- Department of Neurosurgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ying Zhang
- Department of Orthopedics, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yin-Da Tang
- Department of Neurosurgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jin Zhu
- Department of Neurosurgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xu-Hui Wang
- Department of Neurosurgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ting-Ting Ying
- Department of Neurosurgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shi-Ting Li
- Department of Neurosurgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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Zhang X, Zhao H, Ying TT, Tang YD, Zhu J, Li ST. The Effects of Dual Abnormal Muscle Response Monitoring on Microvascular Decompression in Patients with Hemifacial Spasm. World Neurosurg 2017; 101:93-98. [PMID: 28153619 DOI: 10.1016/j.wneu.2017.01.074] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 01/17/2017] [Accepted: 01/19/2017] [Indexed: 10/20/2022]
Abstract
BACKGROUND Microvascular decompression (MVD) is the most useful treatment for hemifacial spasm (HFS). During MVD surgery, traditional abnormal muscle response (tAMR) is widely used to monitor success in decompressing the facial nerve. Dual AMR (dAMR) is a new monitoring method used during MVD for HFS. We compared the sensitivities and reliabilities of tAMR and dAMR. METHODS We performed a retrospective study of 1301 cases of HFS treated using MVD between January 2014 and March 2016. Among the 1301 cases, 587 patients underwent tAMR monitoring and 714 underwent dAMR monitoring. RESULTS Typical abnormal muscle response (AMR) waveforms were observed in 484 patients (82.5%) in the tAMR group and in 688 patients (96.4%) in the dAMR group (P < 0.05). AMR waveforms disappeared in 459 patients in the tAMR group and in 655 patients in the dAMR group during MVD. One day, 7 days, 1 month, and 3 months after MVD surgeries with AMR disappearance, the effective rate of MVD was 95.0%, 94.3%, 94.5%, and 95.0%, respectively, in the tAMR group. The corresponding rates were 97.7%, 96.9%, 97.3%, and 98.0% in the dAMR group (P < 0.05). One day, 7 days, 1 month, and 3 months after MVD surgeries with AMR persistence, the effective rate of MVD was 68.0%, 64.0%, 64.0%, and 64.0%, respectively, in the tAMR group. The corresponding rates were 90.9%, 87.9%, 87.9%, and 90.9% in the dAMR group (P < 0.05). CONCLUSIONS AMR monitoring provides valuable neurosurgical guidance during MVD for HFS. dAMR monitoring has better sensitivity and reliability than tAMR monitoring.
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Affiliation(s)
- Xin Zhang
- Department of Neurosurgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China; Center for Diagnosis and Treatment of Cranial Nerve Diseases, Shanghai Jiao Tong University, Shanghai, China
| | - Hua Zhao
- Department of Neurosurgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China; Center for Diagnosis and Treatment of Cranial Nerve Diseases, Shanghai Jiao Tong University, Shanghai, China
| | - Ting-Ting Ying
- Department of Neurosurgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China; Center for Diagnosis and Treatment of Cranial Nerve Diseases, Shanghai Jiao Tong University, Shanghai, China
| | - Yin-Da Tang
- Department of Neurosurgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China; Center for Diagnosis and Treatment of Cranial Nerve Diseases, Shanghai Jiao Tong University, Shanghai, China
| | - Jin Zhu
- Department of Neurosurgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China; Center for Diagnosis and Treatment of Cranial Nerve Diseases, Shanghai Jiao Tong University, Shanghai, China
| | - Shi-Ting Li
- Department of Neurosurgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China; Center for Diagnosis and Treatment of Cranial Nerve Diseases, Shanghai Jiao Tong University, Shanghai, China.
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16
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Feng BH, Zheng XS, Wang XH, Ying TT, Yang M, Tang YD, Li ST. Management of vessels passing through the facial nerve in the treatment of hemifacial spasm. Acta Neurochir (Wien) 2015; 157:1935-40; discussion 1940. [PMID: 26329733 DOI: 10.1007/s00701-015-2562-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Accepted: 08/18/2015] [Indexed: 11/26/2022]
Abstract
BACKGROUND In hemifacial spasm, it is extremely rare to find a vessel passing through the facial nerve. In this study, we present our experience of the surgical treatment of four such patients. METHODS From January 2010 to Match 2015, we treated 2,576 hemifacial spasm patients with microvascular decompression in our department. Of these, four had an intraneural vessel. Intraoperative findings and treatment were recorded, and postoperative outcomes were analyzed. RESULTS In three patients, the intraneural vessel was the anterior inferior cerebellar artery, which we wrapped with small pieces of wet gelatin and Teflon sponge. A small vein found in the fourth patient was treated with facial nerve combing. Complete decompression was achieved and abnormal muscle response disappeared. Three patients got an excellent result and one patient got a good result. One patient had postoperative facial paralysis, which improved over 10 months of follow-up. CONCLUSION If an artery passes through the facial nerve, it can be decompressed by wrapping the vessel with wet gelatin and Teflon sponge. If a vein passes through the facial nerve, combing can be used. Intraoperative abnormal muscle response monitoring is very helpful in achieving complete decompression.
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Affiliation(s)
- Bao-Hui Feng
- Department of Neurosurgery, Xinhua Hospital, Shanghai JiaoTong University School of Medicine, Cranial Nerve Disease Center of Shanghai JiaoTong University, Shanghai, 200092, China
| | - Xue-Sheng Zheng
- Department of Neurosurgery, Xinhua Hospital, Shanghai JiaoTong University School of Medicine, Cranial Nerve Disease Center of Shanghai JiaoTong University, Shanghai, 200092, China
| | - Xu-Hui Wang
- Department of Neurosurgery, Xinhua Hospital, Shanghai JiaoTong University School of Medicine, Cranial Nerve Disease Center of Shanghai JiaoTong University, Shanghai, 200092, China
| | - Ting-Ting Ying
- Department of Neurosurgery, Xinhua Hospital, Shanghai JiaoTong University School of Medicine, Cranial Nerve Disease Center of Shanghai JiaoTong University, Shanghai, 200092, China
| | - Min Yang
- Department of Neurosurgery, Xinhua Hospital, Shanghai JiaoTong University School of Medicine, Cranial Nerve Disease Center of Shanghai JiaoTong University, Shanghai, 200092, China
| | - Yin-Da Tang
- Department of Neurosurgery, Xinhua Hospital, Shanghai JiaoTong University School of Medicine, Cranial Nerve Disease Center of Shanghai JiaoTong University, Shanghai, 200092, China
| | - Shi-Ting Li
- Department of Neurosurgery, Xinhua Hospital, Shanghai JiaoTong University School of Medicine, Cranial Nerve Disease Center of Shanghai JiaoTong University, Shanghai, 200092, China.
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Dou NN, Zhong J, Zhou QM, Zhu J, Wang YN, Xia L, Yang XS, Ying TT, Zheng XS, Li ST. The mechanism of hemifacial spasm: a new understanding of the offending artery. Neurol Res 2014; 37:184-8. [DOI: 10.1179/1743132814y.0000000424] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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18
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Zhong J, Zhu J, Sun H, Dou NN, Wang YN, Ying TT, Xia L, Liu MX, Tao BB, Li ST. Microvascular decompression surgery: surgical principles and technical nuances based on 4000 cases. Neurol Res 2014; 36:882-93. [PMID: 24597913 DOI: 10.1179/1743132814y.0000000344] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
BACKGROUND As an etiological treatment of trigeminal neuralgia (TN) and hemifacial spasm (HFS), microvascular decompression (MVD) has been popularized around the world. However, as a functional operation in the cerebellopontine angle (CPA), this process can be risky and the postoperative outcomes might not be good enough sometimes. OBJECTIVE In order to obtain a better result with less complication, this surgery should be further addressed. METHODS With experience of more than 4000 MVDs, we have gained knowledge about the operative technique. Through abundant intraoperative photos, each step of the procedure was demonstrated in detail and the surgical strategy was focused. RESULTS The principle of MVD is to separate the nerve-vessel confliction rather than isolate it with prostheses. A prompt identification of the conflict site is important, which hinges on a good exposure. A satisfactory working space can be established by an appropriate positioning of the patient's head and a proper craniectomy as well as a rational approach. A sharp dissection of arachnoids leads to a maximal visualization of the entire intracranial course of the nerve root. All the vessels contacting the trigeminal or facial nerve should be treated. Intraoperative electrophysiological mentoring is helpful to distinguish the offending artery for hemifacial cases. CONCLUSION MVD is an effective treatment for the patient with TN or HFS. Immediate relief can be achieved by an experienced neurosurgeon with good knowledge of regional anatomy. A safe surgery is the tenet of MVD, and accordingly, no single step of the procedure should be ignored.
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Zhou QM, Zhong J, Jiao W, Zhu J, Yang XS, Ying TT, Zheng XS, Dou NN, Wang YN, Li ST. The role of autonomic nervous system in the pathophysiology of hemifacial spasm. Neurol Res 2013; 34:643-8. [DOI: 10.1179/1743132812y.0000000057] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Affiliation(s)
- Qiu-Meng Zhou
- Department of NeurosurgeryXinHua Hosptial, Shanghai JiaoTong University School of Medicine
- The Cranial Nerve Disease Center of ShanghaiShanghai, China
| | - Jun Zhong
- Department of NeurosurgeryXinHua Hosptial, Shanghai JiaoTong University School of Medicine
- The Cranial Nerve Disease Center of ShanghaiShanghai, China
| | - Wei Jiao
- Department of NeurosurgeryXinHua Hosptial, Shanghai JiaoTong University School of Medicine
- The Cranial Nerve Disease Center of ShanghaiShanghai, China
| | - Jin Zhu
- Department of NeurosurgeryXinHua Hosptial, Shanghai JiaoTong University School of Medicine
- The Cranial Nerve Disease Center of ShanghaiShanghai, China
| | - Xiao-Sheng Yang
- Department of NeurosurgeryXinHua Hosptial, Shanghai JiaoTong University School of Medicine
- The Cranial Nerve Disease Center of ShanghaiShanghai, China
| | - Ting-Ting Ying
- Department of NeurosurgeryXinHua Hosptial, Shanghai JiaoTong University School of Medicine
- The Cranial Nerve Disease Center of ShanghaiShanghai, China
| | - Xue-Sheng Zheng
- Department of NeurosurgeryXinHua Hosptial, Shanghai JiaoTong University School of Medicine
- The Cranial Nerve Disease Center of ShanghaiShanghai, China
| | - Ning-Ning Dou
- Department of NeurosurgeryXinHua Hosptial, Shanghai JiaoTong University School of Medicine
- The Cranial Nerve Disease Center of ShanghaiShanghai, China
| | - Yong-Nan Wang
- Department of NeurosurgeryXinHua Hosptial, Shanghai JiaoTong University School of Medicine
- The Cranial Nerve Disease Center of ShanghaiShanghai, China
| | - Shi-Ting Li
- Department of NeurosurgeryXinHua Hosptial, Shanghai JiaoTong University School of Medicine
- The Cranial Nerve Disease Center of ShanghaiShanghai, China
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Zhu J, Li ST, Zhong J, Guan HX, Ying TT, Yang M, Yang X, Zhou Q, Jiao W. Role of arterioles in management of microvascular decompression in patients with hemifacial spasm. J Clin Neurosci 2012; 19:375-9. [DOI: 10.1016/j.jocn.2011.04.046] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2011] [Revised: 04/08/2011] [Accepted: 04/23/2011] [Indexed: 11/16/2022]
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