148484-65-5Relevant articles and documents
Preparation and Crystal Structures of Gold(I) Complexes of a Series of Benzenethiolates: Pair Formation by Gold-to-Gold Interactions of (Benzenethiolato)(triphenylphosphane)gold(I)
Nakamoto, Masami,Hiller, Wolfgang,Schmidbaur, Hubert
, p. 605 - 610 (2007/10/02)
Chloro(triphenylphosphane)gold(I) reacts readily with benzenethiol C6H5SH and a series of sterically hindered (2,4,6-trialkylbenzene)thiols 2,4,6-R3C6H2SH in the presence of NEt3 to yield stable gold(I) complexes Ph3PAu(S-2,4,6-C6H2R3) .The crystal structures of these complexes have been determined by single-crystal X-ray diffraction analysis.In all compounds the gold atoms are linearly two-coordinate with very similar bond lengths and angles. - While complexes 2-4 with bulky thiolate ligands are monomeric in the crystal lattice, complex 1 has been found to form pairs of molecules with intermolecular gold-gold contacts of 313.5(5) pm.The Moessbauer spectra of the complexes exhibit large isomer shifts (I.S.), ranging from 3.06 to 3.72 mm s-1, and quadrupole splittings (Q.S.), ranging from 7.90 to 8.68 mm s-1.These data can be attributed to the strong electron-donating properties of the benzenethiolate ligands.The gold-gold contacts in complex 1 lead to I.S. and Q.S. values which are slightly smaller than those of 2-4.The Au-S distances do not show a major influence of the S-Au-P pairing in complex 1 as compared to complexes 2-4. Key Words: Gold(I) complexes/Gold(I) thiolates/Thiolato complexes.
