A ternary Cu–Sn–S cluster complex—(NBu4)[Cu19S28(SnPh)12(PEt2Ph)3]

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作者：

A Eichh?Fer，J Jiang，S Lebedkin，D Fenske，DG Mcdonald，JF Corrigan，CY Su

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摘要：

Reaction of a mixture of CuCl, PhSnCl3and PEt2Ph with S(SiMe3)2in THF resulted initially in the unexpected synthesis of the ionic, mixed copper–tin sulfide cluster [Li(thf)4][Cu19S28(SnPh)12(PEt2Ph)3] in low yields. However, by adding NBu4Cl to the reaction solutions we were able to selectively synthesize the structurally similar cluster ion in (NBu4)[Cu19S28(SnPh)12(PEt2Ph)3]. Structural characterization by single crystal X-ray analysis reveals that the cluster anions consist in principle of a copper sulfide core decorated by PhSn3+groups. Although additional phosphine ligands are attached to copper atoms the clusters possess an open 'Cu3S3' face mostly protected by the [Li(thf)4]+and (NBu4)+counterions in the crystal structure. The cluster (NBu4)[Cu19S28(SnPh)12(PEt2Ph)3] displays near-infrared, temperature-dependent photoluminescence at 820–930 nm in the solid state, which is especially bright at temperatures below 100 K.

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关键词：

Amination C-H activation Azides Metalloporphyrins Porphyrinoids Homogeneous catalysis

DOI：

10.1039/c2dt11840h

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年份：

2012