Standard Thermochemical Characteristics of Combustion and Formation of Bulky Benzoquinone-Type Derivatives at T = 298.15 K

In the present work, the combustion energies of 2,5-dihydroxy-3,6-di-tert-butyl-p-benzoquinone and 4-methoxy-3,6-di-tert-butyl-o-benzoquinone were determined by static-bomb combustion calorimetry in oxygen at a reference temperature of 298.15 K. The standard molar enthalpies of combustion and formation of the studied benzoquinones were calculated using the experimental values of the combustion energies. The enthalpies of formation of the investigated compounds were compared with the thermochemical characteristics of the previously studied benzoquinone derivatives.