Zinkkomplexe des Liganden Tris(methylaminomethyl)-ethan / Zinc Complexes of the Ligand Tris(methylaminomethyl)ethane

Abstract

The title ligand CH3C(CH2—NHCH3)3 was used to prepare complexes with zinc salts. In addition to the known 1:1 complexes of ZnCl2 and ZnBr2, those of ZnI2, Zn(SCN)2, Zn(CH3COO)2, and Zn(NO3)2, and the bis-ligand complex of Zn(ClO4)2 were obtained and characterized. Crystal structure determinations revealed a tetrahedral coordination with two nitrogen atoms of the ligand and two anions bound to zinc for the acetate complex and for the thiocyanate complex, upon crystallization of which the ligand was converted to an acetone aminal. In the bis-ligand zinc perchlorate complex the ligand is tridentate, and zinc has an octahedral coordination.