Hydrogen Bonding Engineering Achieved Hybrid Antiperovskite Ferroelastic in (C3H8ON)3(SnCl6)Cl
Cha-Hui Du , Peng-Cheng Zhuge , Ji Liu , Zeng-Jie Xiao , Hao-Fei Ni , Yi Zhang , Da-Wei Fu , Zhi-Xu Zhang
Chinese Journal of Chemistry ›› 2026, Vol. 44 ›› Issue (12) : 1988 -1994.
Hybrid antiperovskites have attracted tremendous research interest with unique assembly architecture, holding great promise in ferroelectricity, nonlinear optics, optoelectronic detection, etc. However, constructing hybrid antiperovskite has always been a great challenge, and the ferroelasticity within this family remains unexplored. Here, we report the first case of hybrid antiperovskite ferroelastic, (C3H8ON)3(SnCl6)Cl, designed via molecular modification. Through hydrogen-bond engineering by substituting (C3H6ON)+ cations with (C3H8ON)+, the stacking arrangement of components in lattice was reconfigured to transform a zero-dimensional precursor of (C3H6ON)2SnCl6 into a three-dimensional hybrid antiperovskite architecture. This structural reorganization successfully induces a ferroelastic phase transition with an Aizu notation of 2mF222. This work not only enriches the hybrid antiperovskite family, but also sheds new light for designing ferroic materials.
Antiperovskite / Molecular ferroelastic / Phase transition / Organic-inorganic hybrid material / Molecular crystal / Dielectric / Ferroelasticity / Hydrogen bond
2026 SIOC, CAS, Shanghai, & WILEY-VCH GmbH
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