Theoretical and Experimental Chemistry

, Volume 26, Issue 4, pp 444–449 | Cite as

Investigation of the transformations of chlorobenzene at the surface of a vanadium oxide catalyst by IR spectroscopic and thermal desorption methods

  • I. V. Davidenko
  • A. A. Davydov
  • Yu. I. Pyatnitskii
  • Yu. V. Belokopytov
  • A. G. Agazade


In the present work an IR spectroscopic and thermodesorption investigation of the surface compounds formed by chlorobenzene on a vanadium oxide catalyst was undertaken. It was established that in the initial period of adsorption chlorobenzene forms a weakly bonded π complex with the surface of the catalyst. With subsequent increase in temperature a compound firmly bound to the surface of the catalyst appears. It is most likely that this complex is a σ complex formed through a bond between the reagent molecule and an electrophilic center on the surface. On the basis of the results from the IR-spectroscopic investigations and thermal desorption a mechanism involving intermediate surface compounds detected by IR spectroscopy is proposed for the catalytic oxidation of chlorobenzene.


Oxide Spectroscopy Vanadium Initial Period Oxide Catalyst 
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Copyright information

© Plenum Publishing Corporation 1991

Authors and Affiliations

  • I. V. Davidenko
    • 1
  • A. A. Davydov
    • 1
  • Yu. I. Pyatnitskii
    • 1
  • Yu. V. Belokopytov
    • 1
  • A. G. Agazade
    • 1
  1. 1.L. V. Pisarzhevskii Institute of Physical ChemistryAcademy of Sciences of the Ukrainian SSRKiev

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