Cyclopentadienyl Ruthenium(II) Complexes with Bridging Alkynylphosphine Ligands: Synthesis and Electrochemical Studies
作者:Barbara Di Credico、Fabrizia Fabrizi de Biani、Luca Gonsalvi、Annalisa Guerri、Andrea Ienco、Franco Laschi、Maurizio Peruzzini、Gianna Reginato、Andrea Rossin、Piero Zanello
DOI:10.1002/chem.200901642
日期:2009.11.9
were prepared (dppab=1,4‐bis[(diphenylphosphino)ethynyl]benzene). Moreover, by using the triphosphine 1,3,5‐tris[(diphenylphosphino)ethynyl]benzene (tppab), the trimetallic [CpRuCl(PPh3)}3(μ3‐tppab)] (5) species was synthesised, which is the first example of a chiral‐at‐ruthenium complex containing three different stereogenic centres. Besides these open‐chain complexes, the neutral cyclic species
[CpRuCl(PPh 3)2 ](Cp =环戊二烯基)和[CpRuCl(dppe)](dppe = Ph 2 PCH 2 CH 2 PPh 2)与双和三膦配体1,4-(Ph 2 PC≡C)2 C ^ 6 ħ 4(1)和1,3,5-(PH 2 PC≡C)3 ç 6 ħ 3(2)中,由末端炔烃和diphenylchlorophosphine之间镍催化的交叉偶联反应来制备,已被调查。使用金属定向自组装方法,两个线性双金属络合物,[CpRuCl(PPh 3)} 2(μ-dppab)](3)和[CPRU(DPPE)} 2(μ-dppab)](PF 6)2(4),以及单核配合物[CpRuCl(PPH 3)(η 1 -制备了含有“悬臂”配体的dppab)](6)(dppab = 1,4-双[(二苯基膦基)乙炔基]苯)。此外,通过使用该triphosphine 1,3,5-三[(二苯基膦基)乙炔基]