Thermochemistry of tris(l,1,1 -trifluoropentane-2,4-dionato)- and tris(2,2,6,6-tetramethylheptane-3,5-dionato)-aluminium(III)

Abstract

Enthalpies of formation of the crystalline title complexes have been determined at 298.15 K by solution calorimetry: ΔH_f^⊖[Al(tfpd)₃(c)]=–892.7 ± 3.1 and ΔH_f^⊖[Al(tmhd)3(c)]=–571.5 ± 3.1 kcal mol^–1. Gas-phase enthalpies have been calculated, and from these the Al–O bond energies have been derived.