149076-07-3Relevant academic research and scientific papers
Acetylenephosphino gold(I) derivatives: Structure, reactivity and luminescence properties
Bardaji, Manuel,Jones, Peter G.,Laguna, Antonio
, p. 3624 - 3629 (2007/10/03)
We have synthesised the acetylenephosphino gold(I) derivatives, AuX(PPh2CCH) (X = Cl, Br, I, C6F5). X-Ray diffraction studies show that the chloro derivative is a dimer connected by two short hydrogen bonds from the acetylenic hydrogen to chlorine, whilst the iodo derivative is also a dime because of a gold-gold interaction of 3.0625(9) A. The crystal structure of the pentafluorophenyl derivative shows the presence of intermolecular hydrogen bonds Au...H (3.07 A, 143°), also from the acetylenic hydrogen, which link the molecules into claims. The possibility of preparing alkynyl derivatives has been investigated but only complex [Au(C6F5)(PPh2CC)Au(C6 F5)]-[N(PPh3)2] 6 has been obtained in a pure state. Complex 6 luminesces at room temperature in the solid state, and all the complexes are luminescent at 77 K with excitation maxima in the range 292-335 nm and emission maxima between 445 and 533 nm.
Monomeric to polymeric gold(I) complexes from bifunctional ligands R2PCCH
Jia, Guochen,Puddephatt, Richard J.,Vittal, Jagadese J.
, p. 211 - 217 (2007/10/02)
Oligomeric and polymeric gold(I) complexes in which gold(I) complexes in which gold(I) centers are bridged by R2PCC- ligands are reported.The new ligand iPr2PCCH was prepared by reaction of iPr2PCl with HCCMgBr.Displacement of SMe2 from by R2PCCH gave CH)>, R = Ph or iPr, which were characterized spectroscopically and, for R = iPr, by single crystal X-ray diffraction analysis , Z = 2, a = 9.229(2), b = 9.345(1), c = 7.654(1) Angstroem, α = 112.79(1), β = 105.49(1), γ = 99.33(1) deg, V = 559.7(2) Angstroem3>.Treatment of with NaOMe gave elimination of HCl with formation of C)>x>.When R = Ph, the product is insoluble in all common organic solvents and is presumed to be polymeric but, when R = iPr, the product is partially soluble in chlorinated organic solvents and is suggested to exist as a mixture of cyclic oligomers and linear polymer.
