摘要:
The reaction of [O(AuPPh3)(3)](+)BF4(-) with a Li,K derivative of o-cresol followed by the interaction of the reaction product with CO2 gave (triphenylphosphine)gold acetate. The reaction of ClAuPPh3 with o-LiC6H4SLi afforded (triphenylphosphine)go Id thiophenoxide. According to the data of X-ray structural analysis, the latter occurs as a dimer formed through an intermolecular secondary Au...Au bond. The reaction of this complex with diazomethane was accompanied by insertion of carbene into the Au-S bond to form a new gold complex, PhSCH2AuPPh3. The reactions with PPh3Au+BF4- or HBF4 yielded a new tetranuclear gold thiocluster, {[PhS(AuPPh3)(2)](2+)(BF4-)}(2), which involves Au...Au bonds that differ in strength. The structures of the compounds obtained were established by X-ray structural analysis, H-1 and P-31 NMR spectroscopy, and FAB mass spectrometry.