Picosecond optical studies of nickel(II) protoporphyrin IX dimethyl ester

Scott H. Courtney, Tom M. Jedju, Joel M. Friedman, Rhett G. Alden, Mark R. Ondrias

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Abstract

Time-resolved Raman and adsorption spectroscopies were used to characterize the vibrational and electronic structure of the *B1g excited state of nickel(II) protoporphyrin IX dimethyl ester. Evidence for structural relaxation processes within the initial B1g excited state was observed on picosecond time scales. We conclude that interconversions between structural conformers are important in these processes. Such conformational interconversions in metalloporphyrins may have a major role in the complex mechanisms of many biological systems.

Original languageEnglish (US)
Pages (from-to)39-44
Number of pages6
JournalChemical Physics Letters
Volume164
Issue number1
DOIs
Publication statusPublished - Dec 1 1989
Externally publishedYes

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ASJC Scopus subject areas

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

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