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Crystal structures, electronic spectra and magnetic properties of homoleptic and heteroleptic metal-dithiolate molecular solids. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.03.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Tong YB, Tian ZF, Duan HB, Zhu ZP, He W, Hong TY, Yu G, He YJ, Yang JK. [(18-Crown-6)K][Fe(1)Cl(1) 4 ] 0.5 [Fe(2)Cl(2) 4 ] 0.5 : A Multifunctional Molecular Switch of Dielectric, Conductivity and Magnetic Properties. Chem Asian J 2018; 13:656-663. [PMID: 29356387 DOI: 10.1002/asia.201701794] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Revised: 01/17/2018] [Indexed: 11/07/2022]
Abstract
Multifunctional materials that exhibit different physical properties in a single phase have potential for use in multifunctional devices. Herein, we reported an organic-inorganic hybrid compound [(18-crown-6)K][Fe(1)Cl(1)4 ]0.5 [Fe(2)Cl(2)4 ]0.5 (1) by incorporating KCl and FeCl3 into a 18-crown-6 molecule, which acts as a host of the six O atoms providing a lone pair of electrons to anchor the guest potassium cation, and [FeCl4 ]- as a counterion for charge balance to construct a complex salt. This salt exhibited a one-step reversible structural transformation giving two separate high and low temperature phases at 373 K, which was confirmed by systematic characterizations including differential scanning calorimetry (DSC) measurements, variable-temperature structural analyses, and dielectric, impedance, variable-temperature magnetic susceptibility measurements. Interestingly, the structural transformation was coupled to both hysteretic dielectric phase transition, conductivity switch and magnetic-phase transition at 373 K. This result gives an idea for designing a new type of phase-transition materials harboring technologically important magnetic, conductivity and dielectric properties.
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Affiliation(s)
- Yuan-Bo Tong
- School of Chemical Sciences, University of Chinese Academy of Sciences., Beijing, 100049, P. R. China
| | - Zheng-Fang Tian
- Hubei Key Laboratory for Processing and Application of Catalytic Materials, Huanggang Normal University, Huanggang, Hu Bei Province, 438000, P. R. China
| | - Hai-Bao Duan
- School of Environmental Science, Nanjing Xiaozhuang University, Nanjing, 211171, P. R. China
| | - Zhong-Peng Zhu
- School of Chemical Sciences, University of Chinese Academy of Sciences., Beijing, 100049, P. R. China
| | - Wei He
- School of Chemical Sciences, University of Chinese Academy of Sciences., Beijing, 100049, P. R. China
| | - Tian-Yu Hong
- School of Chemical Sciences, University of Chinese Academy of Sciences., Beijing, 100049, P. R. China
| | - Gui Yu
- Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100080, P. R. China
| | - Yu-Jian He
- School of Chemical Sciences, University of Chinese Academy of Sciences., Beijing, 100049, P. R. China
| | - Jing-Kui Yang
- School of Chemical Sciences, University of Chinese Academy of Sciences., Beijing, 100049, P. R. China
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Synthesis and characterization of polymer-mediated CaCO3 nanoparticles using limestone: A novel approach. ADV POWDER TECHNOL 2018. [DOI: 10.1016/j.apt.2017.12.023] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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