Role of ligand conformation in the structural diversity of divalent complexes containing phosphinic amide ligand
作者:Chun-Wei Yeh、Jhy-Der Chen
DOI:10.1016/j.inoche.2011.04.023
日期:2011.8
the corresponding metal salts afforded the complexes [Zn(L)Cl2]∞, 1, and Co3(L)4Br6, 2, which have been structurally characterized by X-ray crystallography. The molecules of the free L ligands are interlinked through N–H―N and C–H―O hydrogen bonds to form a linear chain, whereas complex 1 shows the 1D helical chain structure, which is the first coordination polymer containing phosphinic amide ligands
摘要 次膦酰胺配体 N-(4-甲基-2-嘧啶基)-P,P-二苯基-次膦酰胺, L 与相应的金属盐反应生成配合物 [Zn(L)Cl2]∞, 1, and Co3(L)4Br6, 2,其结构已通过 X 射线晶体学表征。游离L配体的分子通过N-H-N和C-H-O氢键相互连接形成线性链,而配合物1显示一维螺旋链结构,这是第一个含有次膦酰胺配体的配位聚合物,和 2 是线性 Co(II) 三聚体,具有罕见的混合 Td–Oh–Td 几何结构。游离L配体采用对齐构象,而1和2中的配体分别采用顺式和顺式和反式构象。