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Synthesis and characterization of some lanthanide(III) chloro complexes derived from 4[N-(4’-hydroxy-3’-methoxy-benzalidene)amino]antipyrinesemicarbazone and 4[N-(3’,4’,5’-trimethoxybenzalidene)- amino]antipyrinesemicarbazone

Agarwal, Ram K. and Prasad, Surendra and Chakraborti, I. (2004) Synthesis and characterization of some lanthanide(III) chloro complexes derived from 4[N-(4’-hydroxy-3’-methoxy-benzalidene)amino]antipyrinesemicarbazone and 4[N-(3’,4’,5’-trimethoxybenzalidene)- amino]antipyrinesemicarbazone. Iranian Journal of Chemistry and Chemical Engineering, 23 (2). pp. 113-119. ISSN 1011-3509

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Abstract

Lanthanide(III) chloro complexes of 4[N-(4’-hydroxy-3’-methoxybenzalidene) amino] anitpyrinesemicarbazone (HMBAAPS) (I) and 4[N-(3’,4’,5’-trimethoxybenzalidene) amino] antipyrinesemicarbazone (TMBAAPS) (II) with the general composition LnC13.2L (Ln=La, Pr,Nd, Sm, Gd, Tb, Dy or Ho; L = HMBAAPS or TMBAAPS) are reported. All the complexes were synthesized in ethanolic medium and reflux the reaction mixture (1:2.2, M:L ratio). The yield percentage ranging from 78 - 82%. The complexes are non-ionic in nature. The infrared spectral studies reveal that both of the semicarbazones are tridentate (N,N,O) ligands. Magnetic spectral and thermal properties of the complexes have also been investigated. A coordination number nine is tentatively suggested in these complexes.

Item Type: Journal Article
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Science, Technology and Environment (FSTE) > School of Biological and Chemical Sciences
Depositing User: Ms Neha Harakh
Date Deposited: 24 Apr 2004 20:40
Last Modified: 02 May 2012 19:04
URI: http://repository.usp.ac.fj/id/eprint/3084
UNSPECIFIED

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