Structural characterization, phase transition and switchable dielectric behaviors in a new zigzag chain organic-inorganic hybrid compound: [C3H7NH3]2SbI5

Dalton Transactions : an International Journal of Inorganic Chemistry
Chen-Yu MaoYi Zhang

Abstract

A novel zigzag chain organic-inorganic hybrid compound of the general formula R2MI5, [n-C3H7NH3]2[SbI5] (1), was successfully synthesized, in which the n-propylammonium cations were located in the free cavities between the one-dimensional zigzag chains. Systematic characterization was performed to investigate the phase transition of 1. A pair of sharp peaks at 211.8 K (heating) and 203.7 K (cooling) with a hysteresis 8.1 K were observed in the differential scanning calorimetry (DSC) curve, indicating the first-order phase transition behavior of 1. The temperature dependence dielectric measurement demonstrated a step-like change at around 211.8 K, which makes 1 a potential switchable dielectric material. Frequency dependence measurement revealed that the frequency exerts a weak influence on the dielectric permittivity. Further structural analysis shows that both anionic and cationic moieties contribute to the phase transition, accompanied by weak hydrogen bond interactions between cations and the [SbI5]n(2-) chains.

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May 9, 2014·Dalton Transactions : an International Journal of Inorganic Chemistry·Bao-Ying WangXiao-Ming Chen
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May 27, 2015·Advanced Materials·Yi ZhangRen-Gen Xiong
Oct 28, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·Zhong-Xia WangYi Zhang

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Citations

Mar 24, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Hai-Peng ChenDa-Wei Fu
Mar 7, 2019·Chemical Communications : Chem Comm·Jia-Yun SimaJian-Ping Lang
Oct 11, 2016·Chemical Communications : Chem Comm·Alex M GanoseDavid O Scanlon
Nov 3, 2017·Inorganic Chemistry·Hong-Bin LuoXiao-Ming Ren

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