Synthesis and Structural Characterization of Tetranuclear Sulfur-Centered Complexes with Mixed-Valent Gold Atoms: [S(Au<sub>2</sub>dppf){Au(C<sub>6</sub>F<sub>5</sub>)<sub>3</sub>}<sub>2</sub>] (dppf = 1,1‘-Bis(diphenylphosphino)ferrocene) and [S(AuPPh<sub>3</sub>)<sub>2</sub>{Au(C<sub>6</sub>F<sub>5</sub>)<sub>3</sub>}<sub>2</sub>]
作者:Fernando Canales、M. Concepción Gimeno、Antonio Laguna、Peter G. Jones
DOI:10.1021/om960153o
日期:1996.7.23
The reaction of [S(Au(2)dppf)] or [S(AuPPh(3))(2)] (dppf = 1,1'-bis(diphenylphosphino)ferrocene) with 2 equivs of [Au(C6F5)(3)(OEt(2))] leads to the tetranuclear gold(I)-gold(III) derivatives [S(Au(2)dppf)Au(C6F5)(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 complex 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.