Ferroelectric Heterobimetallic Clusters with Ferromagnetic Interactions

Two homochiral trinuclear clusters, {(MeTp)2Fe2(CN)6Ni[(1R,2R)-chxn]2} (1) and {(MeTp)2Fe2(CN)6Ni[(1S,2S)-chxn]2} (2) [chxn = 1,2-diaminocyclohexane; MeTp = methyltris(pyrazolyl)borate], have been synthesized and structurally characterized. Ferroelectric and magnetic measurements reveal that they are rare examples of metal−organic compounds bearing ferroelectricity and intramolecular ferromagnetic interactions.

两种同手性三核簇合物{(MeTp)2Fe2(CN)6Ni[(1R,2R)-chxn]2} (1)和{(MeTp)2Fe2(CN)6Ni[(1S,2S)-chxn]2} (2) [其中chxn代表1,2-二氨基环己烷，MeTp代表甲基三(吡唑基)硼酸]已被合成并进行了结构表征。铁电性和磁性测量结果显示，它们是罕见的兼具铁电性和分子内铁磁性相互作用的金属有机化合物实例。