摘要:
Equimolar quantities of [WI2(CO)3(NCMe)2] and 1,4-diphenylbutadiyne (PhC2C2Ph) react in CH2Cl2 at room temperature to eventually give the iodo-bridged dimer [W(mu-I)I(CO)(NCMe)(eta2-PhC2C2Ph)]2 (1). Reaction of [WI2(CO)3(NCMe)2] with two equivalents of PhC2C2Ph eventually afforded [WI2(CO)(NCMe)(eta2-PhC2C2Ph)2] (2). The bimetallic 1,4-diphenylbutadiyne complex [W2I4(CO)2(NCMe)2(mu2,mu2'-eta2,eta2'-PhC2C2Ph)2] (3) was synthesized by reaction of equimolar quantities of 2 and [WI2(CO)3(NCMe)2]. The reactions of 1 and 2 with mono- and bidentate neutral donor ligands are also described.