1022900-83-9Relevant academic research and scientific papers
A new series of dinuclear Au(I) complexes linked by diethynylpyridine groups
Li, Peiyi,Ahrens, Birte,Bond, Andrew D.,Davies, John E.,Koentjoro, Olivia F.,Raithby, Paul R.,Teat, Simon J.
, p. 1635 - 1646 (2008)
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 d10... d10 Au...Au interactions (Au-Au 3.351(2) Ae. 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 π-π* ligand-centred transitions and this is confirmed by DFT calculations. The Royal Society of Chemistry.
