THERMAL STABILITY AND THERMODYNAMICS OF THE DECOMPOSITION OF FERROCENE AND SOME OF ITS ONE-, TWO-, AND TRINUCLEAR DERIVATIVES

Abstract

Mono-, bi-, and trinuclear derivatives of ferrocene (C5H5)Fe(C5H4)C(CH3)2OH (I), [С5Н5FeC5H4]2CCH3OH (II) and С5Н5FeC5H4]3COH (III) were synthesized, the thermal stability and thermodynamics of their decomposition reactions were studied. It is shown that when the samples are heated from room temperature to 700 °C in an inert gas flow, the residual mass of compounds I-III is 2.05, 20.24 and 66.96% of the initial mass, respectively, and these compounds decompose with the formation of nanosized iron/iron oxide and carbon particles. The decomposition of these compounds in an air stream leads to the combustion of these compounds with the formation of only iron oxide (III) in the form of a solid residue and carbon dioxide and water as products of the gas phase. The temperature dependences of the Gibbs free energy of the decomposition reactions of ferrocene and its derivatives in the range 600- 1500K have been determined