Molecular Ions pp 415-418 | Cite as

Ab Initio Calculation of Potential Energy Curves of The CO2+ Ion

  • M.-Th. Praet
  • J.-C Lorquet
  • G. Raseev

Abstract

There are numerous examples in the present volume of experimental determinations of the geometry of positive ions. All of the excited electronic states of the ions however are not necessarily experimentally detectable: the transition is sometimes forbidden by selection rules. However, these “forbidden states” may play an important role, e.g., in predissociation processes. Such a behavior has been recently reported by Eland and Berkowitz [1] in the case of the predissociation of the \( \tilde{C}{{(}^{2}}\sum _{g}^{ + }) \) state of CO2 +. The theoretical determination of the potential energy surfaces for all of the electronic states in the energy range of interest is then of great help in the analysis of the dissociation mechanisms.

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References

  1. 1.
    J. H. D. Eland and J. Berkowitz, J. Chem. Phys., 67, 2782, (1977).ADSCrossRefGoogle Scholar
  2. 2.
    W. B. England, B. J. Rosenberg, P. J. Fortune, and A. C. Wahl, J. Chem. Phys., 65, 684 (1976).ADSCrossRefGoogle Scholar
  3. 3.
    D. W. Turner, C. Baker, A. D. Baker, C, R. Brundle, Molecular Photoelectron Spectroscopy (1970), Wiley Interscience, London.Google Scholar
  4. 4.
    The program system MOLALCH incorporates the MOLECULAR Gaussian integral program and the ALCHEMY SCF and CI wavefunction gen-erator programs. MOLECULE was written by Dr. Almlöf of the University of Uppsala, Sweden. ALCHEMY was written at the IBM San Jose Research Laboratory. The interfacing of these programs was performed by P. S. Bagus and U. I. Wahlgren. For a description of MOLECULE, see J. Almlöf, Proceedings of the Second Seminar on Computational Problems in Quantum Chemistry (Max Planck Institut, München, 1973), p. 14. For a description of ALCHEMY see P. S. Bagus, in Selected Topics in Molecular Physics ( Chemie, Weinheim, 1972 ), p. 187.Google Scholar
  5. 5a.
    S. Huzinaga, J. Chem. Phys., 42, 1293 (1965).ADSCrossRefGoogle Scholar
  6. 5b.
    J. H. Dunning, J. Chem. Phys., 53, 2823 (1970).ADSCrossRefGoogle Scholar
  7. 6.
    R. McWeeny, Mol. Phys., 28, 1273 (1974). L. Salem, C. Le- forestier, G. Segal, and R. Wetmore, J. Am. Chem. Soc., 97, 479 (1975). J. Li£vin and G. Verhaegen, Theor. Chim. Acta, 42, 42 (1976).Google Scholar
  8. 7.
    A. J. Lorquet, J. C. Lorquet, H. Wankenne, and J. Momigny, J. Chem. Phys., 55, 4053 (1971).ADSCrossRefGoogle Scholar

Copyright information

© Plenum Press, New York 1983

Authors and Affiliations

  • M.-Th. Praet
    • 1
  • J.-C Lorquet
    • 1
  • G. Raseev
    • 1
  1. 1.Département de Chimie Générale et de Chimie PhysiqueUniversité de LiègeLiègeBelgium

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