Coexistence of Magnetic and Electric Orderings in the Metal–Formate Frameworks of [NH4][M(HCOO)3]

Coexistence of Magnetic and Electric Orderings in the Metal–Formate Frameworks of [NH4][M(HCOO)3]

A family of three-dimensional chiral metal–formate frameworks of [NH4][M(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...

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Veröffentlicht in:Journal of the American Chemical Society 2011-09, Vol.133 (38), p.14948-14951
Hauptverfasser: Xu, Guan-Cheng, Zhang, Wen, Ma, Xiao-Ming, Chen, Yi-Hong, Zhang, Li, Cai, Hong-Ling, Wang, Zhe-Ming, Xiong, Ren-Gen, Gao, Song
Format: Artikel
Sprache:eng
Schlagworte:
Electrons
Formates - chemistry
Magnetics
Metals, Heavy - chemistry
Models, Molecular
Organometallic Compounds - chemical synthesis
Organometallic Compounds - chemistry
Quaternary Ammonium Compounds - chemistry
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Zusammenfassung:A family of three-dimensional chiral metal–formate frameworks of [NH4][M(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.
ISSN:0002-7863
1520-5126
DOI:10.1021/ja206891q