SPECTRAL CHARACTERIZATION OF SOME OXO-METAL COMPLEXES OF 2-MERCAPTO-3-BUTYL-QUINAZOLINE-4-ONE

Authors: R.N. Pandey* and A.K. Nag

P.G. Centre of Chemistry (M.U.), College of Commerce, Patna-800 020 (India); E-mail: rameshwarnath.pandey@yahoo.com

Oxo-metal (VI & IV) complexes of 2-mercapto-3-butyl- quinazoline-4-one having general formula [MO₂ (ligand) ₂A₂] (M=V/Mo/W; A= H₂O/Py/Cl) and [MO(ligand) ₄X] (M=V/Zr; X= H₂O/SO₄) are prepared and characterized  using elemental analyses, conductometric magnetic moment, IR, UV-vis, ¹H NMR spectral data. Cis-dioxo structure of MO₂⁺⁺ (M=Mo/W) and Trans-dioxo-structure of VO₂⁺species occurs in octahedral stereochemistry and ligand acts as monodentate (S-donor).

Keywords : dioxo-metal (V &VI)/ oxo-metal(IV) complexes, thioquinazoline, IR, UV-vis, 1H NMR Spectra.