1
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Zhang YF, Tang SY, Xu YQ, Li MZ, Cheng SP, Ai Y. Halogen substitution assisted modification on phase transition point and band gap of (DBU) PbX3 (X = Cl, Br, I). J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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2
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Owczarek M, Lee M, Zapf V, Nie W, Jakubas R. Accessing One-Dimensional Chains of Halogenoindates(III) in Organic-Inorganic Hybrids. Inorg Chem 2022; 61:5469-5473. [PMID: 35343233 DOI: 10.1021/acs.inorgchem.2c00374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Organic-inorganic hybrids of halogenoindates(III) are typically represented by one of the zero-dimensional units: InX4-, InX52-, InX63-, or In2X115-. Higher dimensional anionic forms, although not forbidden, have remained almost elusive. Here we report for the first time In3+-based organic-inorganic hybrids, (C4H5N2S)2InCl5 and (C4H5N2S)2InBr5, with 1D anionic chains of trans-halide-bridged InX6 octahedra whose formation is guided by 2-mercaptopyrimidinium cations (C4H5N2S+). The chains are characterized by the significant ease of deformation, which is reflected in the elongation of the bridging bonds or the displacement of In3+ ions. The materials show a robust band gap predominantly governed by C4H5N2S+ cations. Dielectric relaxation processes in (C4H5N2S)2InBr5 arise from the cations' dynamics and suggest the ability of the brominated system to accommodate even larger cations. Our work represents a successful attempt to expand the structural diversity of halogenoindates(III) and opens a pathway to reach multifunctional 1D In3+-based hybrids.
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Affiliation(s)
- Magdalena Owczarek
- Materials and Applications Division, Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Minseong Lee
- National High Magnetic Field Lab, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Vivien Zapf
- National High Magnetic Field Lab, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Wanyi Nie
- Materials and Applications Division, Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Ryszard Jakubas
- Faculty of Chemistry, University of Wroclaw, F. Joliot Curie 14, 50-383 Wroclaw, Poland
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3
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Shao T, Gong JM, Liu J, Han LJ, Chen M, Jia Q, Fu DW, Lu HF. 2D lead-free organic–inorganic hybrid exhibiting dielectric and structural phase transition at higher temperatures. CrystEngComm 2022. [DOI: 10.1039/d2ce00541g] [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
A novel switchable molecular dielectric material [3-3-difluorocyclobutylammonium]2CdCl4 was synthesized. It shows a reversible phase transition at 353.95 K and rapid switching and reversibility between high and low dielectric states for several cycles.
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Affiliation(s)
- Ting Shao
- Institute for Science and Applications of Molecular Ferroelectrics, Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua, 321004, People's Republic of China
| | - Jun Miao Gong
- Institute for Science and Applications of Molecular Ferroelectrics, Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua, 321004, People's Republic of China
| | - Jia Liu
- Institute for Science and Applications of Molecular Ferroelectrics, Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua, 321004, People's Republic of China
| | - Li Jun Han
- Institute for Science and Applications of Molecular Ferroelectrics, Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua, 321004, People's Republic of China
| | - Ming Chen
- Ordered Matter Science Research Center, Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, P.R. China
| | - Qiangqiang Jia
- Institute for Science and Applications of Molecular Ferroelectrics, Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua, 321004, People's Republic of China
| | - Da Wei Fu
- Institute for Science and Applications of Molecular Ferroelectrics, Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua, 321004, People's Republic of China
| | - Hai-Feng Lu
- Institute for Science and Applications of Molecular Ferroelectrics, Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua, 321004, People's Republic of China
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4
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Wang P, Chen MK, Tong YQ, Yin SQ, Huang B. Structural phase transition and dielectric relaxation in an organic–inorganic hybrid compound: [(CH 3) 3NH] 4[Fe(SCN) 6]Cl. CrystEngComm 2022. [DOI: 10.1039/d2ce01150f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A new hybrid compound undergoes a structural phase transition accompanied by the thermal hysteresis of dielectric bistability as well as anisotropic dielectric relaxation along the a-, b-, and c-axis.
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Affiliation(s)
- Ping Wang
- Faculty of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China
| | - Ming-Kun Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Yu-Qiao Tong
- Faculty of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China
| | - Shi-Qing Yin
- Faculty of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China
| | - Bo Huang
- Faculty of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China
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5
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Huang X, Gan T, Lu Y, Xu Z, Wang Z, Liao W. Evident Dielectric Relaxation in an Organic‐Inorganic Halide Perovskite. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100366] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xue‐Qin Huang
- Ordered Matter Science Research Center Nanchang University Nanchang 330031 P. R. China
| | - Tian Gan
- Ordered Matter Science Research Center Nanchang University Nanchang 330031 P. R. China
| | - Yan‐Zi Lu
- Ordered Matter Science Research Center Nanchang University Nanchang 330031 P. R. China
| | - Zhe‐Kun Xu
- Ordered Matter Science Research Center Nanchang University Nanchang 330031 P. R. China
| | - Zhong‐Xia Wang
- Ordered Matter Science Research Center Nanchang University Nanchang 330031 P. R. China
| | - Wei‐Qiang Liao
- Ordered Matter Science Research Center Nanchang University Nanchang 330031 P. R. China
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6
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Akrout F, Hajlaoui F, Karoui K, Audebrand N, Roisnel T, Zouari N. Two-dimensional copper (II) halide-based hybrid perovskite templated by 2-chloroethylammonium: Crystal structures, phase transitions, optical and electrical properties. J SOLID STATE CHEM 2020. [DOI: 10.1016/j.jssc.2020.121338] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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7
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Chai S, Xiong J, Zheng Y, Shi R, Xu J. Dielectric phase transition of an A 2BX 4-type perovskite with a pentahedral to octahedral transformation. Dalton Trans 2020; 49:2218-2224. [PMID: 32003371 DOI: 10.1039/c9dt04270a] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Organic-inorganic hybrid compounds that undergo reversible dielectric phase transitions are a very attractive class of smart materials due to their wide applications in data storage, data communication and signal sensing. Here, a piperidine ring, C5H11N, was introduced into the inorganic lead halide perovskite scaffold to obtain three hybrid perovskite compounds, [C5H12N]2PbCl4 (1), [C5H12N]2PbBr4 (2), and [C5H12N]PbI3 (3). When compound 2 and compound 3 feature static two-dimensional (2D) and one-dimensional (1D) perovskite structures, respectively, it is striking that compound 1 shows a reversible pentahedral to octahedral transformation. It undergoes an above-room-temperature dielectric phase transition at Tc≅ 352 K, wherein the high dielectric constant is more than twice the low dielectric constant. Structural analysis shows that 1 undergoes a phase transition from the space group Pnma at the low temperature phase (LTP) to C2/c at the high temperature phase (HTP). The phase transition originates from the order-disorder conversion of piperidinium cations. It is interesting to note that, the Pb2+ cations in the inorganic moieties change from five-coordinate at the LTP to six-coordinate at the HTP. The discovery of dielectric phase transition hybrid organic-inorganic lead halide perovskite materials further enhances the potential applications of high temperature responsive dielectric switchable materials.
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Affiliation(s)
- Siqian Chai
- School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Tianjin 300350, China.
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8
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Zhang ZX, Zhang T, Zhang WY, Shi PP, Ye Q, Fu DW. Higher-Temperature Dielectric Molecular Motor Induced by Unusual Chair-to-Rotator Motion. Inorg Chem 2019; 58:4600-4608. [PMID: 30896161 DOI: 10.1021/acs.inorgchem.9b00161] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
With regard to the artificial molecular motor that was recognized with the 2016 Nobel Prize, this success proves the great scientific significance of rotary motor-type motion at the molecular level, which has been expected to play an invaluable role in the development of electronic information molecular materials. However, designing electronic information-critical high-temperature molecular motors has always been a huge challenge. Since we discovered [(CH3)3NCH2Cl]MnCl3, this cation rotation pattern with a motor-type motion structure has continued to attract our attention. Considering a strategy that combines molecular machines with dielectric theory, ( N, N-dimethylpiperidinium)CdCl3, the new dielectric molecular motor material that exhibits superior physical properties, could be considered to be an excellent dielectric switch based on its electric field and temperature. Crystal structure analyses reveal that the reversible phase transition is mainly induced by the unusual chair-to-rotator motion of cations. Because of the unprecedented leaping structural transition from P63/ mmc to P21/ c and the rotating motor-type motion structure, the material exhibits remarkable anisotropy and outstanding dielectric switching characteristics. These findings open a new avenue for the design and assembly of novel molecular motor materials in the field of electronic information.
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Affiliation(s)
- Zhi-Xu Zhang
- Ordered Matter Science Research Center, Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics , Southeast University , Nanjing 211189 , P. R. China
| | - Tie Zhang
- Ordered Matter Science Research Center, Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics , Southeast University , Nanjing 211189 , P. R. China
| | - Wan-Ying Zhang
- Ordered Matter Science Research Center, Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics , Southeast University , Nanjing 211189 , P. R. China
| | - Ping-Ping Shi
- Ordered Matter Science Research Center, Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics , Southeast University , Nanjing 211189 , P. R. China
| | - Qiong Ye
- Ordered Matter Science Research Center, Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics , Southeast University , Nanjing 211189 , P. R. China
| | - Da-Wei Fu
- Ordered Matter Science Research Center, Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics , Southeast University , Nanjing 211189 , P. R. China
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9
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Gan X, Tang Z, Zhang W, Xu C, Sun X, Gao Z, Wu Y, Cai HL, Wu XS. Molecular ferroelectric pyridin-2-ylmethanaminium perchlorate with phase transition induced by disorder of perchlorate. RSC Adv 2019; 9:5470-5474. [PMID: 35515946 PMCID: PMC9060780 DOI: 10.1039/c8ra10031d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 01/22/2019] [Indexed: 11/21/2022] Open
Abstract
Molecular ferroelectrics are a kind of functional materials that have large application prospects. Comparing with the traditional inorganic ferroelectrics, they have some advantages, such as easy design, environment-friendliness, nontoxicity, and flexibility. In this study, a new molecular ferroelectric pyridin-2-ylmethanaminium perchlorate was discovered, which undergoes a ferroelectric phase transition at around 264.8 K. The spontaneous polarization reaches 0.22 μC cm-2, and the coercive fields are as small as 1.1 kV cm-1 at 202 K. The single-crystal X-ray diffraction analysis reveals that the space group transforms from a polar space group of P21 at 173 K to a centrosymmetric space group of P21/c at 293 K. By analyzing the crystal structure changes below and above the phase transition temperature, it can be concluded that the phase transition is induced by the disorder of perchlorate. Its ferroelectricity was confirmed by the measurements of differential scanning calorimetry, dielectric and hysteresis loop.
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Affiliation(s)
- Xuecheng Gan
- Collaborative Innovation Center of Advanced Microstructures, Laboratory of Solid State Microstructures, School of Physics, Nanjing University Nanjing 210093 P. R. China
| | - Zheng Tang
- Collaborative Innovation Center of Advanced Microstructures, Laboratory of Solid State Microstructures, School of Physics, Nanjing University Nanjing 210093 P. R. China
| | - Wenjun Zhang
- Collaborative Innovation Center of Advanced Microstructures, Laboratory of Solid State Microstructures, School of Physics, Nanjing University Nanjing 210093 P. R. China
| | - Cong Xu
- Collaborative Innovation Center of Advanced Microstructures, Laboratory of Solid State Microstructures, School of Physics, Nanjing University Nanjing 210093 P. R. China
| | - Xiaofan Sun
- Collaborative Innovation Center of Advanced Microstructures, Laboratory of Solid State Microstructures, School of Physics, Nanjing University Nanjing 210093 P. R. China
| | - Zhangran Gao
- Collaborative Innovation Center of Advanced Microstructures, Laboratory of Solid State Microstructures, School of Physics, Nanjing University Nanjing 210093 P. R. China
| | - Yizhang Wu
- Collaborative Innovation Center of Advanced Microstructures, Laboratory of Solid State Microstructures, School of Physics, Nanjing University Nanjing 210093 P. R. China
| | - Hong-Ling Cai
- Collaborative Innovation Center of Advanced Microstructures, Laboratory of Solid State Microstructures, School of Physics, Nanjing University Nanjing 210093 P. R. China
| | - X S Wu
- Collaborative Innovation Center of Advanced Microstructures, Laboratory of Solid State Microstructures, School of Physics, Nanjing University Nanjing 210093 P. R. China
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10
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Sun DS, Zhang YZ, Gao JX, Hua XN, Chen XG, Mei GQ, Liao WQ. Reversible high temperature dielectric switching in a 2H-perovskite compound: [Me3NCH2CH3]CdCl3. CrystEngComm 2019. [DOI: 10.1039/c8ce02174k] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A new organic–inorganic 2H-perovskite compound shows a noteworthy switchable dielectric phase transition at high temperature.
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Affiliation(s)
- Dong-Sheng Sun
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics
- Southeast University
- Nanjing
- 211189 China
| | - Yao-Zu Zhang
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics
- Southeast University
- Nanjing
- 211189 China
| | - Ji-Xing Gao
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics
- Southeast University
- Nanjing
- 211189 China
| | - Xiu-Ni Hua
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics
- Southeast University
- Nanjing
- 211189 China
| | - Xiao-Gang Chen
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics
- Southeast University
- Nanjing
- 211189 China
| | - Guang-Quan Mei
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology
- Yichun University
- Yichun 336000
- China
| | - Wei-Qiang Liao
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics
- Southeast University
- Nanjing
- 211189 China
- Ordered Matter Science Research Center
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11
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Wang Q, Zhang WY, Shi PP, Ye Q, Fu DW. Switchable Dielectric Phase Transition Triggered by Pendulum-Like Motion in an Ionic Co-crystal. Chem Asian J 2018; 13:2916-2922. [PMID: 30070436 DOI: 10.1002/asia.201801056] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Indexed: 11/08/2022]
Abstract
Molecular-based ionic co-crystals, which have the merits of low-cost/easy fabrication processes and flexible structure and functionality, have already exhibited tremendous potential in molecular memory switches and other electric devices. However, dipole (ON/OFF switching) triggering is a huge challenge. Here, we introduce a pendulum-like dynamic strategy to induce the order-disorder transition of a co-crystal [C5 H7 N3 Cl]3 [Sb2 Br9 ] (compound 1). Here, the anion and cation act as a stator and a pendulum-like rotor (the source of the dielectric switch), respectively. The temperature-dependent dielectric and differential scanning calorimetry (DSC) analyses reveal that 1 undergoes a reversible phase transition, which stems from the order-disorder transition of the cations. The thermal ON/OFF switchable motions make 1 a promising candidate to promote the development of bulk crystals as artificial intelligent dielectric materials. In addition, the pendulum-like molecular dynamics and distinct arrangements of two coexisting ions with a notable offset effect promotes/hinders dipolar reorientation after dielectric transition and provides a rarely observed but fairly useful and feasible strategy for understanding and modulating the dipole motion in crystalline electrically polarizable materials.
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Affiliation(s)
- Qing Wang
- Ordered Matter Science Research Center, Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing, 211189, China
| | - Wan-Ying Zhang
- Ordered Matter Science Research Center, Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing, 211189, China
| | - Ping-Ping Shi
- Ordered Matter Science Research Center, Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing, 211189, China
| | - Qiong Ye
- Ordered Matter Science Research Center, Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing, 211189, China
| | - Da-Wei Fu
- Ordered Matter Science Research Center, Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing, 211189, China
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12
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Zhang T, Chen C, Zhang WY, Ye Q, Fu DW. Heat-sensitive structural phase transitions of hybrid halide perovskite with double dielectric ON/OFF switches. Inorg Chem Front 2018. [DOI: 10.1039/c8qi00447a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel one-dimensional perovskite-type hybrid compound (trimethylamine N-oxide)CdCl3 exhibited the sensitivity of dielectric switches at high and low temperatures.
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Affiliation(s)
- Tie Zhang
- Ordered Matter Science Research Center
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics
- Southeast University
- Nanjing 211189
- People's Republic of China
| | - Cheng Chen
- Ordered Matter Science Research Center
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics
- Southeast University
- Nanjing 211189
- People's Republic of China
| | - Wan-Ying Zhang
- Ordered Matter Science Research Center
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics
- Southeast University
- Nanjing 211189
- People's Republic of China
| | - Qiong Ye
- Ordered Matter Science Research Center
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics
- Southeast University
- Nanjing 211189
- People's Republic of China
| | - Da-Wei Fu
- Ordered Matter Science Research Center
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics
- Southeast University
- Nanjing 211189
- People's Republic of China
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13
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Chen HP, Shi PP, Wang ZX, Gao JX, Zhang WY, Chen C, Tang YY, Fu DW. Tunable dielectric transitions in layered organic–inorganic hybrid perovskite-type compounds: [NH3(CH2)2Cl]2[CdCl4−4xBr4x] (x = 0, 1/4, 1). Dalton Trans 2018; 47:7005-7012. [DOI: 10.1039/c8dt00353j] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Molecular bistable dielectric switches represent a class of highly desirable intelligent materials due to their sensitive switchable responses, simple and environmentally friendly processing, light weights, and mechanical flexibility.
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Affiliation(s)
- Hai-Peng Chen
- Ordered Matter Science Research Center
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics
- Southeast University
- Nanjing 211189
- PR China
| | - Ping-Ping Shi
- Ordered Matter Science Research Center
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics
- Southeast University
- Nanjing 211189
- PR China
| | - Zhong-Xia Wang
- Ordered Matter Science Research Center
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics
- Southeast University
- Nanjing 211189
- PR China
| | - Ji-Xing Gao
- Ordered Matter Science Research Center
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics
- Southeast University
- Nanjing 211189
- PR China
| | - Wan-Ying Zhang
- Ordered Matter Science Research Center
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics
- Southeast University
- Nanjing 211189
- PR China
| | - Cheng Chen
- Ordered Matter Science Research Center
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics
- Southeast University
- Nanjing 211189
- PR China
| | - Yuan-Yuan Tang
- Ordered Matter Science Research Center
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics
- Southeast University
- Nanjing 211189
- PR China
| | - Da-Wei Fu
- Ordered Matter Science Research Center
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics
- Southeast University
- Nanjing 211189
- PR China
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14
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Wang Z, Lu Y, Zafar Z, Liu YL, Chen HP, Ge JZ. Sequential dielectric phase transitions induced by the vibrations of water molecules in an organic-inorganic hybrid halide (N-(2-ammoniumethyl)piperazinium) CuCl 5·2H 2O. Dalton Trans 2017; 46:10462-10468. [PMID: 28752881 DOI: 10.1039/c7dt01378g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Organic-inorganic hybrids represent a new type of material showing promising properties. In this report, sequential dielectric transitions have been studied in an organic-inorganic hybrid halide, (N-2-AP)CuCl5·2H2O (N-2-AP = N-(2-ammoniumethyl)piperazinium) (1). The packing structure of 1 displays discrete [CuCl5]3- rectangular pyramids and N-2-AP cations, which are linked by two water molecules, forming infinite hydrogen bond networks with inorganic and organic components along the b-axis. Characterization studies containing differential scanning calorimetry (DSC) measurements, variable-temperature X-ray diffraction and dielectric measurements were performed to investigate the phase transitions in 1. The deuterated sample of 1 (named 2) also exhibits a similar behavior to that in 1, but shows different phase transition temperatures in dielectric transitions. The arresting deuterated effect strongly confirms that the phase transitions in 1 are attributable to the local vibrations of water molecules resulting from the variation of hydrogen-bonding interactions.
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Affiliation(s)
- Zhongxia Wang
- Ordered Matter Science Research Center, Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, College of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China.
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