Modulation of Coordination Chemistry in Copper(I) Complexes Supported by Bis[2-(2-pyridyl)ethyl]amine-Based Tridentate Ligands
作者:Takao Osako、Yoshimitsu Tachi、Masayasu Taki、Shunichi Fukuzumi、Shinobu Itoh
DOI:10.1021/ic010625d
日期:2001.12.1
Structure and physicochemical properties of copper(I) complexes of the tridentate ligands L(2) (N,N-bis[2-(6-methylpyridin-2-yl)ethyl]phenethylamine) and L(3) (N,N-bis[2-(2-pyridyl)ethyl]-beta-methylphenethylamine) have been examined to obtain deeper insights into modulation of the coordination chemistry of copper(I) complexes. [Cu(I)(L(2))(CH(3)CN)](ClO(4)) (2.CH(3)CN) has a distorted tetrahedral
三齿配体L(2)(N,N-双[2-(6-甲基吡啶-2-基)乙基]苯乙胺)和L(3)(N,N-)的铜(I)配合物的结构和理化性质已研究了双[2-(2-吡啶基)乙基]-β-甲基苯乙胺,以更深入地了解铜(I)配合物的配位化学。[Cu(I)(L(2))(CH(3)CN)](ClO(4))(2.CH(3)CN)具有扭曲的四面体几何形状,由配体的三个氮原子组成结合的CH(3)CN的一个氮原子 L(2)吡啶核上的6-甲基与配合物的金属离子之间的立体排斥作用可防止亚铜配合物适应必须具有较短Cu-N(吡啶)距离的三坐标几何结构(大约1.88 A)。因此,具有更长的Cu-N键的四配位铜(I)络合物(2.CH(3)CN)(1。98(约2.13A)变得有利,导致CH(3)CN与金属离子相当强的结合。在[Cu(I)(L(3))](ClO(4))(3)中,亚铜离子与配体侧臂的苯基之间存在Cu(I)-pi相互作用。这种