Interference effects in resonance raman spectroscopy

Joel Friedman, Robin M. Hochstrasser

Research output: Contribution to journalArticle

87 Scopus citations

Abstract

We show that resonance Raman excitation profiles are not generally expected to superimpose on the profile of the absorption spectrum. The discrepancy is due to interference between transition amplitudes of preresonant and more nearly resonant states. Two cases are outlined: in the first the amplitudes have similar magnitudes, and in the second they are quite different. Examples discussed include hemeproteins, visual pigments and resonant scattering from triplet states of molecules. A main point is that qualitative aspects of these interferences may be used to assign states and vibrations. Some new experiments are reported for ferrocytochrome-c scattering.

Original languageEnglish (US)
Pages (from-to)414-419
Number of pages6
JournalChemical Physics Letters
Volume32
Issue number3
DOIs
Publication statusPublished - May 1 1975
Externally publishedYes

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ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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