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Xu, Guan-Cheng; Zhang, Wen; Ma, Xiao-Ming; Chen, Yi-Hong; Zhang, Li; Cai, Hong-Ling; Wang, Zhe-Ming; Xiong, Ren-Gen; Gao, Song
Journal of the American Chemical Society, 09/2011, Letnik: 133, Številka: 38Journal Article
A family of three-dimensional chiral metal–formate frameworks of NH4M(HCOO)3 (M = Mn, Fe, Co, Ni, and Zn) displays paraelectric to ferroelectric phase transitions between 191 and 254 K, triggered by disorder–order transitions of NH4 + cations and their displacement within the framework channels, combined with spin-canted antiferromagnetic ordering within 8–30 K for the magnetic members, providing a new class of metal–organic frameworks showing the coexistence of magnetic and electric orderings.
