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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Luminescent platinum complexes containing phosphorus-linked silole ligands
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Luminescent platinum complexes containing phosphorus-linked silole ligands

机译：含磷连接的硅烷基配体的发光铂配合物

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摘要

A series of Pt(II) complexes containing silole-based ligands with diphenylphosphino groups terminally bound to a conjugated organic linker unit coordinated to the silole ring in the 2- or 2,5-positions, 1,1-dimethyl-2- (5′-diphenylphosphino-2′-thienyl)-3,4-diphenylsilole (4), 1,1-dimethyl-2,5-bis(5′-diphenylphosphino-2′-thienyl)-3, 4-diphenylsilole (5), and 1,1-dimethyl-2,5-bis(4′-diphenylphosphinophenyl) -3,4-diphenylsilole (8), have been prepared from (cod)PtX_2 (X = Cl, Me, C_2Ph) precursors. Mononuclear, cis-P_2PtX_2 (P = 4) complexes 6-7 were produced from silole 4 whereas dinuclear macrocyclic, cis-cis-X_2Pt(P-P)_2PtX_2 (P-P = 5 or 8) complexes 9-13 were produced from siloles 5 and 8. The solid state structure of the dinuclear complex 13 obtained from reaction of (cod)Pt(C_2Ph) _2 with silole 8, was confirmed by X-ray crystallography. The optical properties of the siloles and the platinum complexes were studied by UV-vis and fluorescence spectroscopy in solution and were found to exhibit long wavelength absorption and emission bands attributed to the π-π* transitions of the silole core.
机译：一系列Pt（II）配合物，其中包含基于甲硅烷基的配体，其二苯基膦基基团最终与在2或2,5-位的1,1-二甲基-2-（5 '-二苯基膦基2'-噻吩基）-3,4-二苯基甲硅烷基（4），1,1-二甲基-2,5-双（5'-二苯基膦基-2'-噻吩基）-3，4-二苯基甲硅烷基（5） ，并且已经从（cod）PtX_2（X = Cl，Me，C_2Ph）前体制备了1,1-二甲基-2,5-双（4'-二苯基膦基苯基）-3,4-二苯基甲硅烷基（8）。单环顺式-P_2PtX_2（P = 4）配合物6-7是从silole 4生产的，而双环大环顺式-顺-X_2Pt（PP）_2PtX_2（PP = 5或8）配合物9-13是由五环和五环生产的。由（cod）Pt（C_2Ph）_2与甲硅烷8的反应获得的双核络合物13的固态结构通过X射线晶体学证实。通过溶液中的紫外可见光谱和荧光光谱研究了硅烷和铂配合物的光学性质，发现它们具有长波长的吸收和发射带，这归因于硅烷核的π-π*跃迁。

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