信息来源： 暂无 发布日期: 2015-04-23浏览次数:

题 目:  A {Co₄O₄} Cubane Incorporated within a Polyoxoniobate Cluster

作 者:  Zhijie Liang, Dongdi Zhang, Pengtao Ma, Jingyang Niu*, and Jingping Wang*

刊 名:  Chem. Eur. J

年卷页:  2015, 21,  8380-8383

摘 要：A novel octacobalt-containing polyoxoniobate, Na₆K₁₂[H₂Co₈O₄(Nb₆O₁₉)₄]·39H₂O, has been prepared by a combination of hydrothermal and diffusion methods. The polyanion [H₂Co₈O₄(Nb₆O₁₉)₄]^18- incorporates a tetrameric assembly of Lindqvist-type [Nb₆O₁₉]^8- fragments trapping a {Co^II₄Co^III₄} cluster which comprises a central{Co^III₄O₄} cubane core, surrounded by another four Co^II ions linkers. Furthermore, magnetic measurements show that the compound exhibits antiferromagnetic interactions.