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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Acetylenedithiolate as directional bridging ligand in cobalt(I) alkyne platinum dithiolato bimetallic complexes
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Acetylenedithiolate as directional bridging ligand in cobalt(I) alkyne platinum dithiolato bimetallic complexes

机译：乙二硫代乙炔作为炔（I）炔烃二硫代铂双金属配合物的定向桥联配体

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摘要

The eta(2)-C,C'-acetylenedithiolate (acdt(2-)) complex K[(triphos)Co(acdt)], K-5, {triphos = 1,1,1-tris(diphenylphosphinomethyl)ethane} was obtained by consecutive removal of S-protection groups in [(triphos)Co(1)]PF6, 3-PF6 (1 = 1-Trimethylsilyl-7-phenyl-3,6-dithiahept-4-ine). Reaction of K-5 with selected Pt(II) salts resulted in the formation of the new heterobimetallic complexes [(phen)Pt(5)]BPh4, 6-BPh4, (phen = 1,10-phenanthroline) and [(dppe)Pt(5)]BPh4, 7-BPh4, {dppe = 1,2-bis(diphenylphosphino)ethane}, which were fully characterized. X-ray diffraction studies showed that Co and Pt are linked by acdt(2-) in the eta(2)-C,C'-kappa(2)-S,S'-bridging mode. The electronic structure of 6-BPh4 and 7-BPh4 was investigated by electronic absorption spectroscopy, cyclic voltammetry and X-band EPR spectroscopy of neutral 7. In addition, NMR spectroscopy, X-ray diffraction and reactivity studies with the alkyne complexes [(PMe3)(3)Co(1)]-PF6, 2-PF6, with 3-PF6 and the intermediate product [(triphos)Co{eta(2)-(S)C-2(SCH2Ph)}], 4, uncovered the flexibility of the CoC2S2-moiety within the persisting complex scaffold throughout the synthetic scheme.
机译：eta（2）-C，C'-乙炔二硫醇盐（acdt（2-））络合物K [（triphos）Co（acdt）]，K-5，{triphos = 1,1,1-tris（diphenylphosphinomethyl）ethane}通过连续除去[（triphos）Co（1）] PF6，3-PF6（1 = 1-Trimethylsilyl-7-phenyl-3,6-dithiahept-4-ine）中的S-保护基团得到Sb。 K-5与选定的Pt（II）盐的反应导致形成新的异双金属配合物[（phen）Pt（5）] BPh4、6-BPh4，（phen = 1,10-菲咯啉）和[（dppe） Pt（5）] BPh4，7-BPh4，{dppe = 1,2-双（二苯基膦基）乙烷}已被充分表征。 X射线衍射研究表明，Co和Pt在eta（2）-C，C'-kappa（2）-S，S'-桥接模式下通过acdt（2-）连接。通过中性7的电子吸收光谱，循环伏安法和X波段EPR光谱研究了6-BPh4和7-BPh4的电子结构。此外，NMR光谱，X射线衍射和炔烃配合物的反应性研究[（PMe3 ）（3）Co（1）]-PF6，2-PF6，带有3-PF6和中间产物[（triphos）Co {eta（2）-（S）C-2（SCH2Ph）}]，4，未发现在整个合成流程中，持久存在的复杂支架中CoC2S2部分的灵活性。

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