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E-Journal of Chemistry
Volume 9 (2012), Issue 4, Pages 2255-2260
http://dx.doi.org/10.1155/2012/956812

Synthesis and Spectral Characterization of Schiff Base Cr(III), Mn(III), and Fe(III) Novel Macrocyclic Complexes Derived from Thiocarbohydrazide and Dicarbonyl Compound

1Chemical Science Laboratory, BIT, Muzaffarnagar 251315, Uttar Pradesh, India
2Department of Zoology, Vardhman College, Bijnoar 246701, Uttar Pradesh, India
3Department of Chemistry, Vardhaman College, Bijnor 246701, Uttar Pradesh, India

Received 16 November 2011; Accepted 17 January 2012

Copyright © 2012 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

M(III) Schiff base macrocyclic complexes of the type [HLMX2] where M = Cr(III), Mn(III), Fe(III) and X = Cl, OAc have been synthesized by condensation of acetylacetone and Thio-carbohydrazide (2:2) in the presence of divalent metal salt in methanolic medium. The complexes have been characterized with the help of elemental analysis, conductance measurements, magnetic measurements and their structural configuration have been determined by various spectroscopic (electronic, IR, 1H NMR, 13C NMR, GCMS) techniques. Electronic and magnetic moments of the complexes indicate that the geometries of the metal centers are octahedral.