Preparation and Characterization of Some Metal Complexes With 2-(Caproic-6-Yliminomethyl) Furan as a Ligand

Abstract

A tridentate ligand (FAC), 2-(caproic-6-yliminomethyl) furan, derived from 2-
furaldehyde and 6-aminocaproic acid and its cobalt(II), nickel(II) and copper(II)
complexes have been synthesized by the template condensation of the 2-furaldehyde
with 6-aminocaproic acid in the presence of cobalt(II), nickel(II) or copper(II)
salts in molar ratio of M:L (1:2) which forms the metal complexes of type [M(L)2]
(where M = Co(II), Ni(II) or Cu(II)), and of M:L (1:1) of type [M(L)(H2O)3]Cl (where
M = Co(II), Ni(II) or Cu(II)). The prepared complexes were characterized by metal
content analyses, IR, electronic spectroscopy, magnetic susceptibility and
conductivity measurements. IR spectra confirm coordination of imine nitrogen, the
negative oxygen atom of the carboxyl group and oxygen of the furan ring to the
central metal ion. The magnetic moment data suggested for all complexes to have an
octahedral geometry around the central metal ion. The electronic spectral data also
agree with their proposed structures.