SYNTHESIS AND STRUCTURAL CHARACTERIZATION OF TETRANUCLEAR SULFUR-CENTERED COMPLEXES WITH MIXED-VALENT GOLD ATOMS - [S(AU(2)DPPF)(AU(C6F5)(3))(2)] (DPPF=1,1'-BIS(DIPHENYLPHOSPHINO)FERROCENE) AND [S(AUPPH(3))(2)(AU(C6F5)(3))(2)]
F. Canales et al., SYNTHESIS AND STRUCTURAL CHARACTERIZATION OF TETRANUCLEAR SULFUR-CENTERED COMPLEXES WITH MIXED-VALENT GOLD ATOMS - [S(AU(2)DPPF)(AU(C6F5)(3))(2)] (DPPF=1,1'-BIS(DIPHENYLPHOSPHINO)FERROCENE) AND [S(AUPPH(3))(2)(AU(C6F5)(3))(2)], Organometallics, 15(15), 1996, pp. 3412-3415
The reaction of [S(Au(2)dppf)] or [S(AuPPh(3))(2)] (dppf = 1,1'-bis(di
phenylphosphino)ferrocene) with 2 equivs of [Au(C6F5)(3)(OEt(2))] lead
s to the tetranuclear gold(I)-gold(III) derivatives [S(Au(2)dppf){Au(C
6F5)(3)}(2)] (1) or [S(AuPPh(3))(2){Au(C6F5)(3)}(2) (2), which contain
a mu(4)-sulfur moiety. The crystal structure determinations reveal a
tetrahedral coordination at the sulfur center, more distorted in compl
ex 1 as a consequence of a short gold(I)-gold(I) interaction of 2.9561
(7) Angstrom and a gold(I)-gold(III) contact of 3.534 Angstrom.