TRIS(PENTAFLUOROPHENYL)GOLD(III) COMPLEXES WITH O-DONOR, N-DONOR OR S-DONOR LIGANDS

Au(C6F5)3(OEt2) is a better intermediate complex than Au(C6F5)3·tht (tht = tetrahydrothiophen). The former compound can be prepared from (NBu4) [Au(C6F5)3Br] and AgClO4 in diethylether and the ether ligand can be easily displaced by neutral ligands [L = THF, OCMe2, diox, EtOH, SPPh3, SPPh2Me, OPPh3, OAsPh3, NCMe, NCPh, NCPr, NCCHCH2, o(NC)2C6H4] as well as cationic ones [(X)PPh2CH2 PPh2R]+ [X = S, R = Me, CH2C6F5, COOMe, CH2Ph; X = O, R = CH2Ph] to give the corresponding neutral or cationic tris(pentafluorophenyl)gold(III) complexes most of which were hitherto unaccessible. © 1990.