Synthesis, spectral, thermal and biological properties of some novel coordination compounds of VO(IV) and biological 4[N-(4′-ethylbenzalidene) amino] antipyrine thiosemicarbazone and 4[N-(2′, 4′-dimethyl benzalidene amino] antipyrine thiosemicarbazone

Subject Areas : Journal of the Iranian Chemical Research

Surendra Prasad ¹ (Division of Chemical Sciences, University of South Pacific, Laucala Bay Campus, Suva, Fiji)
Ram Kumar Agarwal ² (Department of Chemistry, Lajpat Rai Postgraduate College, Sahibabad-201 005 (Ghaziabad), India)
Hans Raj Modi ³ (Department of Chemistry, Lajpat Rai Postgraduate College, Sahibabad-201 005 (Ghaziabad), India)

Received: 2009-12-25 Accepted : 2009-12-24 Published : 2009-10-21

Keywords: Oxovanadium (IV) complexes, thiosemicarbazone, Biological activity, Mixed ligand complexes,

Abstract :

In present studies the synthesis, characterization and biological properties ofoxovanadium(IV) coordination compounds of 4[N-(4′-ethylbenzalidene)amino] antipyrinethiosemicarbazone (EBAAPTS) and 4[N-(2′,4′-dimethylbenzalidene)amino] antipyrinethiosemicarbazone (DMBAAPTS) with the general composition VOX2L (X = C1-, Br-, I-, NO3-or NCS-) and VO(CIO4)2(L)H2O (L = EBAAPTS or DMBAAPTS) are described . All thecomplexes were characterized by elemental analyses, molar mass, molar conductance, magneticsusceptibility, infrared and electronic spectra. In all these complexes, both thethiosemicarbazones behave as neutral tridentate (N, N, S) ligands. The thermal properties of therepresentative complexes are also reported. The most probable geometry of the complexes isproposed.

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