Thermal Behaviour of Pyridine Adducts of Metal Salicylhydroxamate: Depyridineation of Oxovanadium (IV)-5-Bromo-Salicylhydroxamate-Pyridine

Abstract

The TG-DTG-DTA analysis of mixed-ligand complex of oxovanadium (IV) with 5-bromo salicylhydroxamic acid (5-BSHA) and pyridine (PY) was investigated. The results have shown that mainly two step decomposition occurred wherein two pyridine moieties are lost in one single-step while 5-BSHA moieties are eliminated simultaneously, various kinetic and thermodynamic parameters for these steps were estimated employing Coats-Redfern and Horowitz-Metzger methods using computer program designed by us on ICIM-6,000 Main Frame.