Pt; XR′ 3 = arsine or phosphine) are formed in almost quantitative yield in the reactions of [MCl 2 XR′ 3 ] 2 with α-diimine ( 1 1 molar ratio Pt-dimer/R-dim). An X-ray study of [PtCl 2 PBu 3 ] 2 t-Bu-dim [Z = 2, a = 11.4540(11), b = 16.1169(7), c = 12.9202(12) A and β = 99.82(1); R = 5.9%] reveals a structure consisting of two planar trans-PtCl 2 P-units bridged by a planar NCCN skeleton in anti-configuration
摘要[MCl 2 XR'3] 2 R-dim [MCl 2 XR'3] 2 R-dim(M = Pd或Pt; XR'3 =
砷化氢或膦)的络合物在[MCl 2 XR'3] 2 α-二
亚胺(Pt-二聚体/ R-dim摩尔比为1 1)。X射线研究[PtCl 2 PBu 3] 2 t-Bu-dim [Z = 2,a = 11.4540(11),b = 16.1169(7),c = 12.9202(12)A和β= 99.82(1 ); R = 5.9%]揭示了一种结构,该结构由两个平面反式PtCl 2 P单元以反构型[CC1.48(2),CN1.27(3),NPt2.214]桥接,由平面NCCN骨架桥接(10)A]。由于
铂配位平面和NCCN平面的正交位置,β-
亚胺质子与
铂原子的距离很短(约2.6 A)。溶液中的结构已通过1 H,13 C,31 P和195 Pt NMR光谱测定。观察到的光谱指向