Effect of ligand and solvent on chloride ion coordination in anti-tumour copper(I) diphosphine complexes: Synthesis of [Cu(dppe)2]Cl and analogous complexes (dppe = 1,2-bis(diphenylphosphino)ethane)
作者:Jason S. Lewis、Jamal Zweit、Philip J. Blower
DOI:10.1016/s0277-5387(97)00343-4
日期:1998.1
isolation of the complexes containing coordinated chloride. Related ligands such as cis-1,2-bis(diphenylphosphino)ethene, 1,2-bis(diethylphosphino) ethane, 1,2-bis(dimethylphosphino)ethane and 1,2-bis(hydroxymethylphosphino)ethane, give salts [CuL2]Cl. This behaviour, and that of other 1,2-bisphosphine ligands, is rationalised in terms of competition between chloride and phosphine ligands for binding sites
摘要铜(I)与1,2-双(二苯基膦基)乙烷(L1)之间形成的络合物先前曾被分离为[CuL21] +阳离子的盐(如果仅存在非配位阴离子),或被分离为[Cu2Cl2L31](如果存在氯离子)存在。我们描述了[CuL21] Cl的合成,其化学计量由元素分析,FAB质谱和电导率确定。极性溶剂(水与乙醇的混合物)导致后者的分离,而极性较低的溶剂(CHCl3,CH2Cl2)导致含有配位氯化物的配合物的分离。相关配体,例如顺式1,2-双(二苯基膦基)乙烯,1,2-双(二乙基膦基)乙烷,1,2-双(二甲基膦基)乙烷和1,2-双(羟甲基膦基)乙烷,得到盐[CuL2 ] Cl。该行为以及其他1,2-双膦配体的行为