Author： Singh D.P. Malik Vandna Kumar Ramesh Singh Jitender
Publisher： Informa Healthcare
ISSN： 1475-6366
Source： Journal of Enzyme Inhibition and Medicinal Chemistry, Vol.24, Iss.5, 2009-10, pp. : 1201-1206
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Abstract
A new series of macrocyclic complexes of type [M(TML)X]X2, where M = Cr(III), Mn(III), or Fe(III), TML is tetradentate macrocyclic ligand, and X = Cl−, NO3−, CH3COO− for Cr(III), Fe(III) and X = CH3COO− for Mn (III), has been synthesized by condensation of benzil and succinyldihydrazide in the presence of metal salt. The complexes have been so formulated due to the 1:2 electrolytic nature of these complexes as shown by conductivity measurements. The complexes have been characterized with the help of various physicochemical techniques such as elemental analysis, molar conductance, electronic and infrared spectral studies, and magnetic susceptibility. On the basis of these studies, a five-coordinate distorted square pyramidal geometry, in which two nitrogens and two carbonyl oxygen atoms are suitably placed for coordination toward the metal ion, has been proposed for all the complexes. The complexes have been tested for their
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