Excited-state conformational dynamics of nickel (II) porphyrins

S. H. Courtney, T. M. Jedju, J. M. Friedman, L. Rothberg, R. G. Alden, M. S. Park, M. R. Ondrias

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

Electronic structure of the *B1g excited state of nickel (II) octaethylporphyrin and nickel (II) protoporphyrin IX diemthyl ester in noncoordinating solvents. Spectroscopic evidence for structural relaxation processes within the initial *B1g excited state on picosecond time scales suggests structural interconversion. Multiple conformations are expected to exist in solution based on crystal structures and previous resonance Raman studies. Here we present calculations that support conformational interconversions. Structural dynamics may play a role in the complex mechanisms of many biological systems that involve metalloporphyrins.

Original languageEnglish (US)
Pages (from-to)1610-1614
Number of pages5
JournalJournal of the Optical Society of America B: Optical Physics
Volume7
Issue number8
DOIs
StatePublished - Aug 1990
Externally publishedYes

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics

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