TGA studies of metoclopramide complexes of cobalt(II) in the solid state

A new series of cobalt(II) complexes with metoclopramide (MCP) ligand have been prepared. The prepared Co(II)-MCP complexes were characterized for various analytical techniques. Conductivity and elemental analysis of complexes have been measured. The thermal stability and degradation kinetics have been measured using thermogravimetric analyser. Kinetic parameter was obtained for each stage of thermal degradation for Co(II)-MCP complexes using Horowitz-Metzger, Coats-Redfern and Broido's methods. The activation energy (Ea) of the complexes for the thermal degradation process lie in the range 31-168, 23-161 and 33-170 kJ mol−1 for Horowitz-Metzger, Coats-Redfern and Broido's methods, respectively.