Synthesis and Characterization of Oxovanadium Complexes Featuring O- and N- Donor Environment

Abstract

Vanadium is currently receiving considerable attention as a biologically important metal due to the existence of vanadoenzymes and medicinal importance. Discovery of a vanadium containing cofactor in bromoperoxidases and nitrogenases has evoked new interest in coordination chemistry of vanadium. Exploration of chemical and electrochemical reactivity of oxovanadium(V) complexes in general and vanadium(V) alkoxides in particular are of current interest. To extend these observations, I focus my interest on the synthesis and characterizations of new mononuclear oxovanadium complex featuring O-N-donor ligand in relation to the biological and catalytic activities. In this dissertation I report the synthesis, structure and full characterization of a new mononuclear square pyramidal monoalkoxo-bound monooxo-vanadium (V) complex VOL2S(OEt) (1) of 2-Hydroxyacetophenonehydrazone
of 2-Hydroxybenzoylhydrazine Ligand. I also report the synthesis of several other Schiff’s bases and their respective oxovanadium complexes. Due to insufficient data and time limit I am unable to report the complete characterization of all these complexes (2-4).