Structural Chemistry

, Volume 7, Issue 5–6, pp 397–404 | Cite as

Thermochemical study of aliphatic and phenyl-substituted geminal diacetates

  • Sergey P. Verevkin
  • Wei-Hong Peng
  • Hans-Dieter Beckhaus
  • Christoph Rüchardt
Article

Abstract

The standard enthalpies of combustion δcHo of aliphatic diacetates1 and aromatic diacetates2 were measured calorimetrically. The enthalpies of vaporization δvapHo or sublimation δsubHo of1 and2 were obtained from the temperature function of the vapor pressure measured in a flow system. From δfHo(g) of1 and2 new values of group increments for the estimation of standard enthalpies of formation of these classes of compounds were derived. The geminal interaction energy between the geminal acyloxy groups shows no anomeric stabilization.

Key words

Enthalpy of combustion enthalpy of formation enthalpy of vaporization geminal interaction of substituents 

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Copyright information

© Plenum Publishing Corporation 1996

Authors and Affiliations

  • Sergey P. Verevkin
    • 1
  • Wei-Hong Peng
    • 1
  • Hans-Dieter Beckhaus
    • 1
  • Christoph Rüchardt
    • 1
  1. 1.Institut für Organische Chemie und Biochemie der Universität FreiburgFreiburg i. Br.Germany

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