Influence on reactivity of chloro ligand substitution in mononuclear cationic Pd(II) and Pt(II) triphos complexes: X-ray structure of the nitrate derivatives
作者:Damián Fernández、Paloma Sevillano、M.Inés Garcı́a-Seijo、Alfonso Castiñeiras、László Jánosi、Zoltán Berente、László Kollár、M.Esther Garcı́a-Fernández
DOI:10.1016/s0020-1693(00)00329-7
日期:2001.1
ligand in [M(triphos)Cl]Cl complexes [M=Pd (1), Pt (2); triphos=Ph2PC2H4P(Ph)C2H4PPh2] by reaction with 1 equiv. of KX resulted in the formation of the ionic complexes [M(triphos)X]Cl [X=I, M=Pd (3), Pt (4); X=CN, M=Pd (5), Pt (6)]. Methanolic solutions of silver nitrate in excess displace the chloro ligand and counterion of 1 and 2, giving rise to the formation of the crystalline complexes [M(triphos)(ONO2)](NO3)
摘要[M(triphos)Cl] Cl配合物[M = Pd(1),Pt(2); 通过与1当量反应,可得到三氯苯并[Ph2PC2H4P(Ph)C2H4PPh2]。的KX导致形成离子络合物[M(triphos)X] Cl [X = I,M = Pd(3),Pt(4);X = CN,M = Pd(5),Pt(6)]。硝酸银的甲醇溶液过量取代了氯配体以及1和2的抗衡离子,从而形成了结晶络合物[M(triphos)(ONO2)](NO3)[M = Pd(7),Pt(8) )]适用于X射线衍射研究。配合物在金属周围显示出扭曲的方平面环境,其中三个配位点被三足磷原子所占据,第四个被硝酸根的氧原子作为单齿配体所占据。第二个NO3-作为具有D3h对称性的抗衡离子。在1当量的存在下使用大量过量的SnCl2。PPh 3的形成使得能够形成复合物[M(triphos)(PPh 3)](SnCl 3)2 [M = P