Generalized Perturbational Molecular Orbital (PMO) Theory

Dong Kyun Seo, Garegin Papoian, Roald Hoffmann

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


The useful perturbation expressions for wave functions and energies that are needed in perturbational molecular orbital (PMO) theory are rederived and generalized in two aspects: First, degenerate systems now can be treated in a systematic manner, as in the case of nondegenerate systems. Second, the new expressions can cope with complex wave functions. Two examples of applications to degenerate systems are given to show the qualitative and quantitative utility of the new expressions.

Original languageEnglish (US)
Pages (from-to)408-420
Number of pages13
JournalInternational Journal of Quantum Chemistry
Issue number1
StatePublished - Mar 5 2000
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry


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