A new series of dinuclear Au(I) complexes linked by diethynylpyridine groups

被引：19

作者：

Li, Peiyi ^{[2
]}

Ahrens, Birte ^{[1
]}

Bond, Andrew D. ^{[2
]}

Davies, John E. ^{[2
]}

Koentjoro, Olivia F. ^{[1
]}

Raithby, Paul R. ^{[1
]}

Teat, Simon J.

机构：

[1] Univ Bath, Dept Chem, Bath BA2 7AY, Avon, England

[2] Univ Cambridge, Dept Chem, Cambridge CB2 1EW, England

来源：

DALTON TRANSACTIONS | 2008年 / 12期

基金：

英国科学技术设施理事会; 英国工程与自然科学研究理事会;

关键词：

D O I：

10.1039/b716664h

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A series of novel digold complexes incorporating ethynyl pyridine derivatives as a spacer unit, [(R3P) Au(C=C) X(C=C) Au(PR3)] (R = Ph, X = 2,5-pyridine (1); R = Cy (cyclohexane), X = 2,5-pyridine (2); R = Ph, X = 2,6-pyridine (3); R = Ph, X = 2,5'-bipyridine (4); R = Ph, X = 2,6'-bipyridine (5)), has been synthesised. All the complexes have been characterised spectroscopically and the structures determined by single-crystal X-ray crystallography. The central (C=C)(X)(C=C) unit is essentially linear for complexes 1, 2 and 4 and kinked for complexes 3 and 5, but only in 1, with the shortest spacer group and the less bulky phosphine ligand, is there evidence of d(10)center dot center dot center dot d(10) Au center dot center dot center dot Au interactions (Au-Au 3.351(2) angstrom). The solution UV/visible absorption and emission spectra for all the complexes are similar to those of the free ligands suggesting that the spectra are dominated by pi-pi* ligand-centred transitions and this is confirmed by DFT calculations.

引用

页码：1635 / 1646

页数：12

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