Enthalpy of combustion of organo-metallic compounds measured with a vacuum-jacketed, rotating, aneroid calorimeter. The enthalpies of formation of germanium tetrabenzyl and di-germanium hexaphenyl

Abstract

Germanium tetrabenzyl and di-germanium hexaphenyl have been burnt in a rotating aneroid combustion calorimeter. The standard enthalpies of combustion were respectively: ΔH^°_c=–3774.9±2.5 kcal mol^–1; ΔH^°_c=–4782.4±2.5 kcal mol^–1, which yield the standard enthalpies of formation : ΔH^°_f(GeBz₄, c)= 52.5±2.5 kcal mol^–1; ΔH^°_f(Ge₂Ph₆, c)= 106.7±2.5 kcal mol^–1.