Synthesis, spectral and thermal properties of some penta-coordinated complexes of oxovanadium (IV) derived from thiosemicarbazones of 4-aminoantipyrine

Synthesis, spectral and thermal properties of some penta-coordinated complexes of oxovanadium (IV) derived from thiosemicarbazones of 4-aminoantipyrine

The paper reports the synthesis of crystalline oxovanadium(IV), $VO^{2+}$, complexes of thiosemicar-bazones, i.e. 4[N-(4'-nitrobenzalidene)amino]antipyrine thiosemicarbazone $(4'-NO_2BAAPTS)$ and 4[N-(furan-2'-aldimine)amino]antipyrine thiosemicarbazone (FFAAPTS) with general composit...

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Veröffentlicht in:Turkish journal of chemistry 2004, Vol.28 (6), p.691-701
Hauptverfasser: AGARWAL, Ram K, PRASAD, Surendra, GAHLOT, Neetu
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container_title Turkish journal of chemistry
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creator AGARWAL, Ram K
PRASAD, Surendra
GAHLOT, Neetu
description The paper reports the synthesis of crystalline oxovanadium(IV), $VO^{2+}$, complexes of thiosemicar-bazones, i.e. 4[N-(4'-nitrobenzalidene)amino]antipyrine thiosemicarbazone $(4'-NO_2BAAPTS)$ and 4[N-(furan-2'-aldimine)amino]antipyrine thiosemicarbazone (FFAAPTS) with general composition $VOX_2L$ (X = Cl, Br, I, $N0_3$ or NCS) and $VO(ClO_4)_2(L)H_2O$ (L = $4'-N0_2BAAPTS$ 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.
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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. 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title Synthesis, spectral and thermal properties of some penta-coordinated complexes of oxovanadium (IV) derived from thiosemicarbazones of 4-aminoantipyrine
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