Extended near-infrared resonance raman investigations of an organic mixed-valence system: Diazatetracyclodiene radical cation

Robert D. Williams, Joseph T Hupp, Michael T. Ramm, Stephen F. Nelsen

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15 Citations (Scopus)

Abstract

Resonance Raman scattering studies in the extended near-infrared region show that six modes are coupled to the intramolecular charge-transfer transition in the mixed-valence radical cation diazatetracyclodiene. Spectral analysis based on time-dependent scattering-theories shows that all six modes make substantial contributions to the vibrational reorganization energy. Measured Raman scattering cross sections were found to be considerably less than would be predicted by the conventional time-dependent scattering theories utilized here, evidently owing to complications arising from avoided surface crossings and anharmonic wave packet propagation. An examination of the classical and nonclassical kinetic effects of the coupled modes indicated that a considerable influence on the rate of intramolecular electron transfer is exerted by the modes collectively.

Original languageEnglish
Pages (from-to)11172-11180
Number of pages9
JournalJournal of Physical Chemistry A
Volume103
Issue number50
Publication statusPublished - Dec 16 1999

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coupled modes
Cations
Raman scattering
Scattering
Raman spectra
Infrared radiation
valence
cations
Wave packets
resonance scattering
scattering
scattering cross sections
wave packets
Spectrum analysis
spectrum analysis
Charge transfer
electron transfer
examination
charge transfer
Kinetics

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Extended near-infrared resonance raman investigations of an organic mixed-valence system : Diazatetracyclodiene radical cation. / Williams, Robert D.; Hupp, Joseph T; Ramm, Michael T.; Nelsen, Stephen F.

In: Journal of Physical Chemistry A, Vol. 103, No. 50, 16.12.1999, p. 11172-11180.

Research output: Contribution to journalArticle

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