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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Synthesis and Crystal Structure of a Tetranuclear Molybdenum(II) Silylamido Cluster
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Synthesis and Crystal Structure of a Tetranuclear Molybdenum(II) Silylamido Cluster

机译:四核钼(II)Silylamido簇的合成和晶体结构

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摘要

Treatment of molybdenum(II) chloride with the difunctional silylamide Li_2Me_2Si(NPh)_2 led to the formation of the tetranuclear cluster compound [Mo_4{Me_2Si(NPh)_2}_4]. According to the X-ray crystal structure determination, the central core of the cluster consists of four molybdenum atoms in a nearly rectangular arrangement. There are two μ4-κ-N,N,N',N'-Me_2Si(NPh)_2~(2-) ligands capping the Mo_4 rectangle and two μ_2-Me_2Si(NPh)_2~(2-) ligands located at opposite edges. The alternating Mo-Mo distances of 218.1(1) and 279.5(1) pm indicate the presence of a cyclobutadiyne type cluster with alternating Mo-Mo triple and single bonds.
机译:用双官能团硅酰胺Li_2Me_2Si(NPh)2处理氯化钼(II)导致四核簇合物[Mo_4{Me_2Si(NPh)2}4]的形成。根据X射线晶体结构测定,原子团的中心核由四个钼原子组成,几乎呈矩形排列。有两个μ4-κ-N,N,N',N'-Me_2Si(NPh)_2~(2-)配体覆盖Mo_4矩形,两个μ2-Me_2Si(NPh)_2~(2-)配体位于相对的边缘。218.1(1)和279.5(1)pm的交替Mo-Mo距离表明存在具有交替Mo-Mo三键和单键的环丁二烯型簇。

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