Near-room-temperature dielectric switch and thermal expansion anomaly in a new hybrid crystal: (Me2NH2)[CsFe(CN)(5)(NO)]

resumo

A new hybrid crystal, (Me2NH2)[CsFe(CN)(5)(NO)], featuring a double-layered nitroprusside-based inorganic framework with cubic-like cages encapsulating organic cations, undergoes a near-room-temperature phase transition accompanied by a dielectric switch and thermal expansion anomaly. The hidden mechanism was disclosed to be highly associated with order-disorder transition of organic cations and deformation of the inorganic framework.

palavras-chave

ORGANIC-INORGANIC HYBRID; PHASE-TRANSITIONS; RESPONSES; CATIONS; SERIES

categoria

Chemistry; Crystallography

autores

Li, QY; Li, MF; Chen, XX; Gong, YP; Liu, DX; Xu, WJ; Zhang, WX

nossos autores

agradecimentos

This work was supported by the NSFC (22071273 and 21821003) and the Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program (2017BT01C161).

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