Synthesis and characterisation of vanadium(III) complexes of biphenylphenols

Authors: NEERAJ SHARMA, MARIDULA THAKUR, S C CHAUDHRY

Abstract: The vanadium(III) complexes of composition [VCl_{3-n}(OAr^{1,2})_n.(THF)_2] (OAr^1 = 2-phenylphenoxo and OAr^2 = 4-phenylphenoxo, THF = tetrahydrofuran; n = 1 /to 3) were prepared by in situ reaction of VCl_3.(THF)_3 with sodium salt of respective phenols in tetrahydrofuran. The complexes were characterised by elemental analysis, molar conductance, FTIR, UV-Vis, and FAB-mass spectral and magnetic studies. The thermal behaviour of some of the complexes was studied by TG-DTA. The dinuclear phenoxy bridged octahedral structures for the complexes were inferred from the spectral and magnetic studies.

Keywords: Vanadium(III) complexes, biphenylphenols, magnetic study, electronic spectra, mass spectra

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