Indole-based mono- and poly-nuclear acyclic chelating systems: syntheses and selected transition metal complexes
作者:Paul K. Bowyer、David StC. Black、Donald C. Craig、A. David Rae、Anthony C. Willis
DOI:10.1039/b101350p
日期:——
The treatment of 3-(4-chlorophenyl)-4,6-dimethoxyindole with phosphoryl chloride in dimethylformamide generates the regioselective product 3-(4-chlorophenyl)-4,6-dimethoxyindole-7-carbaldehyde. This serves as a valuable ligand precursor and, on reaction with selected di- and tri-amines, yields a number of new acyclic ligands. Treatment of these ligands with selected divalent transition metal acetates in the presence of triethylamine in acetonitrile affords a range of neutral complexes, encompassing both tetrahedral and square-planar metal geometries, of differing nuclearities. In addition to the chemical and physical properties of the ligands and complexes reported, single crystal analyses were employed for geometric analysis in two ligand derivatives: the first, a mononuclear distorted tetrahedral racemic nickel(II) complex; the second, a dinickel heterochiral complex.
在二甲基甲酰胺中用磷酰氯处理 3-(4-氯苯基)-4,6-二甲氧基吲哚,生成区域选择性产物 3-(4-氯苯基)-4,6-二甲氧基吲哚-7-甲醛。它作为一种有价值的配体前体,与选定的二胺和三胺反应,产生许多新的无环配体。在乙腈中的三乙胺存在下,用选定的二价过渡金属乙酸盐处理这些配体,得到一系列具有不同核性的中性配合物,包括四面体和方形平面金属几何形状。除了报道的配体和配合物的化学和物理性质外,单晶分析还用于两种配体衍生物的几何分析:第一个是单核扭曲四面体外消旋镍(II)配合物;第二个是单核扭曲四面体外消旋镍(II)配合物。第二个是二镍异手性配合物。