one sulfur atom. The coordination number of the metal is 3 if the cyclopentadienyl is regarded as a unidentate ligand. A series of [(η-cyclopentadienyl)(O-alkyl dithiocarbonato)(trialkyl- or triarylphosphine)nickel(II)], [Ni(C5H5)(S2COR)(PR′3)], where R=CH3, C2H5, CH3(CH2)2, (CH3)2CH, or CH3(CH2)3; R′=C6H5, C6H5CH2, or CH3(CH2)3, were also obtained. The dissociation of the phosphine ligand of the complexes
合成标题络合物,并通过X射线衍射技术确定结构。晶体为三斜晶系;空间群 P\bar1, a=9.944(1), b=14.336(2), c=9.759(1) A, α=107.00(1), β=117.35(1), γ=76.55(1)°, Z=2,Dx=1.40,Dm=1.36(3) g cm-3,μ(Mo Kα)=1.08 mm-1。O-甲基二
硫代
碳酸根离子作为单齿
配体,通过一个
硫原子与
金属配位。如果将
环戊二烯基视为单齿
配体,则
金属的配位数为 3。一系列[(η-
环戊二烯基)(O-烷基二
硫代
碳酸根)(三烷基-或三芳基膦)
镍(II)]、[Ni(
C5H5)(S2COR)(PR'3)],其中R=
CH3、
C2H5、 (
CH2)2、( )2CH或 ( )3;还获得了 R'=
C6H5、 或 ( )3。用分光光度法研究了溶液中配合物
膦配体的解离,