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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Synthesis and Crystal Structures of Novel Copper(I) Clusters with Bridging Silyl Amide Ligands
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Synthesis and Crystal Structures of Novel Copper(I) Clusters with Bridging Silyl Amide Ligands

机译:桥联硅酰胺配体的新型铜(I)团簇的合成和晶体结构

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Treatment of copper(I) chloride with R_2Si(NLiPh)_2 (R = Me, Ph) in thf led to the formation of the octanuclear cluster compounds [Cu_8{(R_2Si(NPh)_2}_4] [R = Me (1), Ph (2).] Compound 1 crystallizes in the tetragonal space group P4, with a = 1505.41(5) and c = 1911.32(7) pm. The X-ray crystal structure determination revealed a cube shaped Cu_8 cluster core with μ_4 bridging Me_2Si(NPh)_2~(2–) ligands. The copper atoms display an almost linear coordination with Cu–N distances in the range of 191.1(3)–191.4(3) pm. The Cu–Cu distances are 265.7(1)–267.3(1) pm. Compound 2 forms monoclinic crystals, space group P2_1, with a = 1461.87(4), b = 2483.77(6), c = 2725.49(8) pm, β = 100.77(1)°. The cluster core of compound 2 consists formally of two mutually perpendicular arranged trigonal prisms, which share a common square face. Like in the case of compound 1 the square faces of the cluster core are capped by μ_4 bridging Ph_2Si(NPh)_2~(2–) ligands. The copper atoms adopt a nearly linear N–Cu–N coordination with Cu–N distances of 190.0(4)–195.1(4) pm. The Cu–Cu distances are 252.3(1)–305.6(1) pm.
机译:用R_2Si(NLiPh)_2(R = Me,Ph)处理氯化铜(I)导致形成八核簇化合物[Cu_8 {(R_2Si(NPh)_2} _4] [R = Me(1) ,Ph(2)。]化合物1在四边形空间群P4 / n中结晶,其a = 1505.41(5)和c = 1911.32(7)pm。X射线晶体结构测定显示出一个立方体形的Cu_8团簇核, μ_4桥接Me_2Si(NPh)_2〜(2–)配体。铜原子与Cu–N距离在191.1(3)–191.4(3)pm范围内呈几乎线性配位。Cu–Cu距离为265.7( 1)–267.3(1)pm。化合物2形成单斜晶体,空间群P2_1 / n,a = 1461.87(4),b = 2483.77(6),c = 2725.49(8)pm,β= 100.77(1) °。化合物2的团簇核形式上由两个相互垂直排列的三棱柱组成,它们共享一个共同的正方形面,就像化合物1​​的情况一样,团簇核的正方形面由μ_4桥接Ph_2Si(NPh)_2〜覆盖(2–)个配体,铜原子采用近似线性的N– Cu–N与Cu–N距离为190.0(4)–195.1(4)pm的配合。 Cu-Cu距离为252.3(1)–305.6(1)pm。

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