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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >A series of novel Mo(W)/Cu/S heterobimetallic clusters containing SBut- linkages. Synthesis, structure and spectroscopic characterisation
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A series of novel Mo(W)/Cu/S heterobimetallic clusters containing SBut- linkages. Synthesis, structure and spectroscopic characterisation

机译:一系列含有SBut-键的新型Mo(W)/ Cu / S异双金属簇。合成,结构和光谱表征

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摘要

Six new copper(I) clusters, [Et4N](2)[{MOS3}(2)Cu-4(mu-SBut)(2)] (1a: M = Mo; 1b: M = W), [Et4N][{MOS3}(2)Cu-6(mu-SBut)(3)] (2a: M = Mo; 2b: M = W) and [Bu4N](2)[{MOS3}(3)Cu-9(mu-SBut)(3)(mu(3)-SBut)][I] (3a: M = Mo; 3b: M = W) have been prepared by the reactions of thiomolybdates and thiotungstates with CuSBut under various conditions. The [{MOS3}(2)Cu-4(mu-SBut)(2)](2-) dianions in 1a and 1b represent the first examples of double butterfly-shaped Mo(W)/Cu/S clusters. Addition of more Cu atoms to 1a or 1b resulted in the formation of incomplete double cubane-like clusters 2a or 2b. Single crystal structural studies showed that the anions of 2a and 2b are formed in a mouth-to-mouth fashion by two incomplete cubanes [MOS3Cu3] (M = Mo, W) with three mu-SBu(t-)linkages. In the molecular structure of 3b, the SBu(t-)ligands act as mu- and mu(3)- bridges which link three WOS3Cu3 incomplete cubane-like fragments. An iodide ion crystallises in the cavity defined by the three incomplete cubanes in 3b. The spectroscopic and electrochemical properties of all the clusters are also studied.
机译:六个新的铜(I)簇,[Et4N](2)[{MOS3}(2)Cu-4(mu-SBut)(2)](1a:M = Mo; 1b:M = W),[Et4N] [{MOS3}(2)Cu-6(mu-SBut)(3)](2a:M = Mo; 2b:M = W)和[Bu4N](2)[{MOS3}(3)Cu-9( mu-SBut)(3)(mu(3)-SBut)] [I](3a:M = Mo; 3b:M = W)是通过硫代钼酸盐和硫钨酸盐与CuSBut在各种条件下反应制得的。 1a和1b中的[{MOS3}(2)Cu-4(mu-SBut)(2)](2-)阴离子表示双蝶形Mo(W)/ Cu / S团簇的第一个例子。在1a或1b中添加更多的Cu原子会导致形成不完全的双古巴样簇2a或2b。单晶结构研究表明,2a和2b的阴离子是由两个不完全的古巴[MOS3Cu3](M = Mo,W)和三个mu-SBu(t-)键以口对口的方式形成的。在3b的分子结构中,SBu(t)配体充当mu-和mu(3)-桥,它们连接三个WOS3Cu3不完全的古巴样片段。碘离子在3b中的三个不完全古巴所定义的空腔中结晶。还研究了所有团簇的光谱和电化学性质。

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