Article ID Journal Published Year Pages File Type
1234153 Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 2008 10 Pages PDF
Abstract

A tetradentate N2O2 donor Schiff base ligand, H2L, was synthesized by the condensation of 4,6-diacetylresorcinol with benzylamine. The structure of the ligand was elucidated by elemental analyses, IR, 1H NMR, electronic and mass spectra. Reaction of the Schiff base ligand with nickel(II), cobalt(II), iron(III), cerium(III), vanadyl(IV) and uranyl(VI) ions in 1:2 molar ratio afforded binuclear metal complexes. Also, reaction of the ligand with several copper(II) salts, including Cl−, NO3−, AcO−, ClO4− and SO42− afforded different metal complexes that reflect the non-coordinating or weakly coordinating power of the ClO4− anion as compared to the strongly coordinating power of SO42− and Cl− anions. Characterization and structure elucidation of the prepared complexes were achieved by elemental and thermal analyses, IR, 1H NMR, electronic, mass and ESR spectra as well as magnetic susceptibility measurements. The metal complexes exhibited different geometrical arrangements such as square planar, octahedral, square pyramidal and pentagonal bipyramidal arrangements. The variety in the geometrical arrangements depends on the nature of both the anion and the metal ion.

Related Topics
Physical Sciences and Engineering Chemistry Analytical Chemistry
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