Thermal decomposition of metal complexes: I. Complexes of iron(II) iodide with 1,10-phenanthroline, 4,7-dimethyl-1,10-phenanthroline and 4,7-diphenyl-1,10-phenanthroline

Abstract

The thermoanalytical behaviour of the tris complexes of 1,10-phenanthroline, 4,7-dimethyl-1,10-phenanthroline and 4,7-diphenyl-1,10-phenanthroline with Fe(II) iodide is discussed. In conversion of the tris into the bis complexes, the reaction rate is controlled by the metal—ligand bond cleavage so that the “activation energy” can be regarded as an indirect measure of the bond strength.