that appears to control which type of product initially precipitates. Reaction of the trinuclear clusters Pd3(CO)3L3 with CS2 gives the dimeric complexes Pd2(CS2)2L2. The molecular structure of Pd2(CS2)2(PtBu2Ph)2 has been determined by a single crystal X-ray analysis. Crystals of the complex are monoclinic, space group P21/c (a 10.373(2) b 13.684(1), c 12.173(2) Å, β 94.04(7)°) with two centrosymmetrically
PdL n(n = 3,L = P t B
UPh 2;n = 2,L = P t Bu 2 Ph,P t Bu 3,PCy 3)与CS 2在己烷中的反应导致沉淀Pd(η 2 -CS 2)L- 2(L = P吨B
UPH 2,PCY 3)或Pd 2(μ-CS 2)2大号2(L = P吨卜2博士,P吨卜3)。单体络合物Pd(CS 2)L 2在CS 2溶液中不稳定,并转化为相应的双CS 2桥连二聚体络合物Pd 2(CS 2)2 L 2。
膦配体的空间体积似乎控制着最初沉淀出哪种类型的产物。三核簇Pd 3(CO)3 L 3与CS 2的反应得到二聚体配合物Pd 2(CS 2)2 L 2。Pd 2(CS2)2(P t Bu 2 Ph)2已通过单晶X射线分析确定。该复合物的晶体为单斜晶系,空间群P 2 1 / c(a 10.373(2)b 13.684(1),c 12.173(2)Å,β94.04(7)°)