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Temperature‐Triggered Switchable Dielectric Constants in Zinc‐Based Hybrid Organic‐Inorganic Compounds: (C 3 H 6 NH 2 ) 2 [ZnX 4 ] (X = Cl and Br)
Author(s) -
Shi Chao,
Hua MiaoMiao,
Gong ZhiXin,
Ma JiaJun,
Wang ChangFeng,
Liang Hao,
E DianYu,
Qi FangWei,
Zhang Yi,
Ye HengYun
Publication year - 2019
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201900994
Subject(s) - dielectric , chemistry , zinc , single crystal , dielectric loss , phase transition , crystal structure , crystal (programming language) , analytical chemistry (journal) , inorganic chemistry , crystallography , condensed matter physics , optoelectronics , organic chemistry , materials science , physics , computer science , programming language
Two new zinc‐based hybrid organic‐inorganic compounds (AZT) 2 [ZnX 4 ] (AZT = azetidine cation; X = Cl, 1 ; Br, 2 ) were successfully synthesized as high‐temperature stimuli‐responsive materials. Systematic thermodynamic characterization demonstrated that they undergo reversible structural phase transitions accompanied by switchable dielectric constant centered at 342 K for 1 and 356 K for 2 , respectively. Variable‐temperature single‐crystal X‐ray analysis and dielectric constant measurements disclosed the order‐disorder transformation of the cation and anion contributed to the desirable electrical properties. As expected, the static‐motional transition in crystal structure arouses dielectric transitions between the low‐ and high‐dielectric states, making them a type of switchable dielectric materials.