Studies of Bivalent Metal Chelates of 2-Aminomethylpyridine

Abstract

Abstract Bivalent metal chelates of 2-aminomethylpyridine (abbreviated as 2AMP), M(2AMP)2X2 (M=Cu, Ni, Co, and Zn ion; X=Cl−, Br−, I−), were synthesized in ethanol. The magnetic moments and the diffuse reflectance spectra were measured. The Cu(2AMP)2X2 complexes (X=Cl− and Br−) were considered to have a monomeric distorted octahedral structure. The Ni(2AMP)2X2 complexes (X=Cl−, Br−, I−) were also suggested to have an octahedral structure. However, for Co(2AMP)2Br2 and Co(2AMP)2I2 a tetrahedral and a square planar structure were proposed on the basis of their magnetic moments of 4.20 and 2.78 B.M. respectively. The infrared spectra of the chelates were analysed in relation to their structures; a good relationship was found between the structures and the far-infrared spectra.