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  Home > JCE Print > Journal of Chemical Education > Issues > 1998  > September  >
Research: Science and Education
The Morse Oscillator and Second-Order Perturbation Theory
B. A. Pettitt
Department of Chemistry, University of Winnipeg, Winnipeg, MB R3B 2E9, Canada

Cover
September 1998
Vol. 75 No. 9
p. 1170

Abstract
This article shows how the energies of the Morse oscillator are obtained exactly from a second-order perturbation expansion in a harmonic oscillator basis. This exercise is recommended for its instructional value in intermediate quantum chemistry, in that the second-order term is entirely tractable, it arises within an important context (anharmonicity of vibrations), and it gives the right answer.
More Information
*  Citation
Pettitt, Brian A. J. Chem. Educ. 1998 75 1170.
*  Keywords
physical chem, quantum chem, molecular properties, structure
*  History
Created:
Last Updated:
June 21, 1999
June 24, 2005
  Home > JCE Print > Journal of Chemical Education > Issues > 1998 > September > Page 1170


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