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首页> 外文期刊>Inorganic Chemistry Communications >Synthesis, structure and magnetic properties of a copper molybdate hybrid inorganic/organic solid with a novel 10-connected three-dimensional network topology
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Synthesis, structure and magnetic properties of a copper molybdate hybrid inorganic/organic solid with a novel 10-connected three-dimensional network topology

机译:新型十连接三维网络拓扑结构的钼酸铜杂化无机/有机固体的合成,结构和磁性

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摘要

Hydrothermal reaction of CuCl2, MoO3, and 4,4'-dipyridylketone (4,4'-dpk) afforded green crystals of the mixed metal oxide phase {[Cu2(MoO4)2(4,4'-dpkXH2O)]H2O}_n (1). According to single-crystal X-ray diffraction, {Cu2O2} dimers link into 1-D {Cu2O2(μ-H2O))_n chains via bridging aqua ligands. These chains form [Cu2(MoO4)2(H2O)]_n slabs via linkage through tetrahedral molybdate anions. In turn, the copper molybdate slabs are pillared through tethering 4,4'-dpk ligands into a 10-connected three-dimensional lattice with an unprecedented 3~(12)4~(30)5~26 topology. Variable temperature magnetic data above 140 K were fit to the Curie-Weiss law, with C = 0.17 cm~3 K/mol Cu and 0 = 70 K, indicating likely ferromagnetic coupling within the dinuclear kernels of 1; low temperature data points towards the possibility of interdimer antiferromagnetic interactions.
机译:CuCl2,MoO3和4,4'-二吡啶基酮(4,4'-dpk)的水热反应提供了混合金属氧化物相{[Cu2(MoO4)2(4,4'-dpkXH2O)] H2O} _n的绿色晶体(1)。根据单晶X射线衍射,{Cu2O2}二聚体通过桥接水配体链接成1-D {Cu2O2(μ-H2O))_ n链。这些链通过四面体钼酸根阴离子的连接形成[Cu2(MoO4)2(H2O)] _ n平板。反过来,钼酸铜板通过将4,4'-dpk配体束缚成10个连接的三维晶格,具有前所未有的3〜(12)4〜(30)5〜26拓扑结构。高于140 K的可变温度磁数据符合居里-魏斯定律,C = 0.17 cm〜3 K / mol Cu和0 = 70 K,表明双核核1中可能存在铁磁耦合。低温数据指出了二聚体间反铁磁相互作用的可能性。

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