Crystal and molecular structure of a novel mixed-spin binuclear nickel(II) complex with N,N′,N″,N‴-tetrakis(2-aminoethyl)-1,4,8,11-tetra-azacyclotetradecane

Abstract

The crystal structure of [Ni₂(taec)Cl]Cl₃·H₂O was determined by the single-crystal X-ray diffraction method, where taec is N,N′,N″,N‴-tetrakis(2-aminoethyl)-1,4,8,11-tetra-azacyclotetradecane. The [Ni₂(taec)Cl]³⁺ cation has a novel binuclear structure in which one of the nickel ions is co-ordinated by a square-planar N₄ donor set and the other by a distorted square-pyramidal N₄Cl donor set.