ENTHALPIES OF FORMATION OF RADICALS AND BOND DISSOCIATION ENERGIES FOR AROMATIC COMPOUNDS

摘要

Formation enthalpies in a gas phase of 3-methyl-4-nitrofurazan and of some biphenyl derivatives are determined. The calculation scheme by a method of "a double difference" of enthalpies of formation of aromatic radicals and bond dissociation energies is offered. The new calculation method allows exclude the energies of reorganization of molecules fragments into radicals and to determine the enthalpies of formation of radicals and energies of dissociation of chemical bonds by enthalpies of atomization. Enthalpies of formation of 3-methylfurazan-4-yl and biphenyl-4 are determined.