SYNTHESIS AND REACTIVITY OF THE FIRST (HYDROSULFIDO)GOLD(III) COMPLEX- CRYSTAL-STRUCTURE OF THE DERIVATIVES NBU4[(AU(C6F5)(3))(2)SR] WITH THE ISOLOBAL FRAGMENTS R=H, AUPPH3, AGPPH3

The treatment of NBu4[AuBr(C6F5)(3)] with NaSH affords the (hydrosulfi do)gold(III) complex NBu4[Au(C6F5)(3)SH] The latter compound reacts wi th [Au(C6F5)(3)OEt2] to give the dinuclear species NBu4[(Au(C6F5)(3))( 2)SH] The isolobal analogy between H, AuPPh3, and AgPPh3 can be recogn ized in the complexes NBu4[(Au(C6F5)(3))(2)S(MPPh3)] (M = Au, Ag) synt hesized by reaction of NBu4[(Au(C6F5)(3))(2)SH] With [Au(OClO3)(PPh3)] or [Ag(O3SCF3)(PPh3)] in the presence of Na2CO3. The structures of co mplexes NBu4[(Au(C6F5)(3))(2)SR] (R = H, AuPPh3, AgPPh3) have been est ablished by X-ray diffraction studies and show a trigonal-pyramidal ge ometry at sulfur with no short gold-gold or gold-silver interactions b etween the metallic centers.