Experimental and Theoretical Study of the Enthalpy of Formation of 3,6-Diphenyl-1,2,4,5-Tetroxane Molecule

We report the results obtained for the experimental determination and the theoretical calculation of the enthalpy of formation of 3,6-diphenyl-1,2,4,5-tetroxane molecule. The experimental work was performed using a macrocalorimeter to measure the combustion heat, and the sublimation enthalpy was det...

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Bibliographic Details
Main Authors: N.L. Jorge, L.C.A. Leiva, M.G. Castellanos, M.E. Gomez Vara, L.F.R. Cafferata, E.A. Castro
Format: Article
Language:English
Published: Hindawi Limited 2002-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1100/tsw.2002.126
Description
Summary:We report the results obtained for the experimental determination and the theoretical calculation of the enthalpy of formation of 3,6-diphenyl-1,2,4,5-tetroxane molecule. The experimental work was performed using a macrocalorimeter to measure the combustion heat, and the sublimation enthalpy was determined via the measurement of the vapor pressure at equilibrium with the vapor phase at different temperatures resorting to the Clapeyron-Claussius equation. Theoretical calculations were performed using semiempirical AM1 and PM3 methods as well as ab initio techniques at the 3-21, 6-31G(d,p), and 6-311G(d,p) basis set levels.
ISSN:1537-744X