NBu4[{Au(C6F5)(3)}(2)(mu-PPh2)]: a gold(III) phosphide with a single atom bridging the metallic centers

Reaction of [Au(C6F5)(3)(PPh2H)] with [Au(C6F5)(3)(tht)] and NBu4(acac) (ac ac = acetylacetonate) leads to the synthesis of NBu4 [{Au(C6F5)(3)}(2)(mu-P Ph2)] (1), an unprecedented complex with two gold(III) centers bonded to a unique bridging atom without any other stabilizing effect. The novel di-bri dged gold(III) phosphide [Au-2(C6F5)(4)(mu-PPh2)(2)] (2) is obtained by tre atment of diphenylphosphine with [Au-2(C6F5)(4)(mu-Cl)(2)]. The crystal str uctures of both derivatives have been determined by X-ray diffraction. (C) 2000 Elsevier Science S.A. All rights reserved.