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Turkish Journal of Chemistry

Synthesis, Spectral and Thermal Properties of Some Penta-Coordinated Complexes of Oxovanadium(IV) Derived from Thiosemicarbazones of 4-Aminoantipyrine

Ram K. AGARWAL, Surendra PRASAD1, Neetu GAHLOT2
*1Department of Chemistry, School of Pure and Applied Sciences,
The University of the South Pacific, Post Box 1168 Suva-FIJI ISLANDS
e-mail: agarwalr@usp.ac.fj, ramagarwal54@yahoo.com
2Department of Chemistry, Lajpat Rai Post Graduate College,
Sahibabad-201 005 (Ghaziabad)-INDIA

Abstract: The paper reports the synthesis of crystalline oxovanadium(IV), VO2+, complexes of thiosemicarbazones, i.e. 4[N-(4'-nitrobenzalidene)amino]antipyrine thiosemicarbazone (4'-NO2BAAPTS) and 4[N-(furan-2'-aldimine)amino]antipyrine thiosemicarbazone (FFAAPTS) with general composition VOX2L (X = Cl, Br, I, NO3 or NCS) and VO(ClO4)2(L)H2O (L = 4'-NO2BAAPTS or FFAAPTS). All the complexes were characterized by elemental analyses, molar mass, molar conductance, magnetic susceptibility, infrared and electronic spectra. In all the complexes, both the thiosemicarbazones behave as neutral tridentate (N, N, S) ligands. The thermal properties of the representative complexes are also reported. The most probable geometry of the complexes is proposed.

Turk. J. Chem., 28, (2004), 691-702.
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Other articles published in the same issue: Turk. J. Chem.,vol.28,iss.6.