Synthesis of Ni(ii), Pd(ii) and Pt(ii) complexes containing chiral phosphino-thiol and -thioether ligands
作者:Athanasia Dervisi、Robert L. Jenkins、K. M. Abdul Malik、Michael B. Hursthouse、Simon Coles
DOI:10.1039/b209142a
日期:2003.3.12
The chiral P,S ligand 1-(diphenylphosphino)butane-2-thiol, L1H, and its thioether methyl derivative L1Me have been synthesized. L1H reacts with divalent Ni, Pd and Pt salts to form phosphinothiolato complexes of general formula [M(L1)Cl]2 (1, M = Ni), (2, M = Pd), M(L1)2 (3, M = Ni), (4, M = Pd), (5, M = Pt) and M(L1)(PR3)X, (6, M = Pd, R = Ph, X = Cl), (7, M = Pd, R = nBu, X = Cl), (8, M = Pt, R =
手性P,S 配体 1-(二苯基膦基)丁烷-2-硫醇合成了L 1 H及其硫醚甲基衍生物L 1 Me。L 1 H与二价Ni,Pd和Pt盐反应形成通式[M(L 1)Cl] 2 (1,M = Ni),(2,M = Pd),M(L 1)2的硫代硫氰酸根络合物 (3,M = Ni),(4,M = Pd),(5,M = Pt)和M(L 1)(PR 3)X,(6,M = Pd,R = Ph,X = Cl) ,(7,M = Pd,R = n Bu,X = Cl),(8,M = Pt,R = Ph,X = H)。单晶X射线晶体学 揭示了镍和镍的二聚体结构的“蝴蝶”形状 钯复合体,分别为1和2。根据固态结构数据和NMR分析,P,S螯合环对于S异构体采用优选的δ偏构型,对于R异构体采用优选λ构型。复合物6在氯仿形成二聚体2和游离PPh 3的溶液。已经计算出该过程的热力学参数。