Crossref journal-article
AIP Publishing
The Journal of Chemical Physics (317)
Abstract

A systematic study is initiated of resonance Raman scattering in molecular systems with overlapping electronic absorption bands. Resonance Raman spectra, excitation profiles, and depolarization ratios are calculated for a simple molecular dimer in which the two overlapping Franck–Condon progressions are related through the permutational symmetry of the dimer. The model used is highly idealized, but can be solved exactly for a complete range of intermolecular coupling strengths. In the weak and strong intermolecular coupling regions, the exact results are compared with the physically more transparent results obtained from a low-order perturbation treatment. The spectra and profiles show properties characteristic of both totally symmetric and nontotally symmetric modes. The profiles and polarization dispersion curves are subject to both electronic and vibronic interference effects. Anomalous extrema of the depolarization ratio are often found to coincide with minima rather than maxima in the excitation profile. A pairwise comparison of the excitation profiles of Rayleigh lines, Raman fundamentals, and Raman overtones shows characteristic resonance–antiresonance coincidences. It is shown that interference effects of this sort are a general feature of systems exhibiting strong vibronic coupling.

Bibliography

Gregory, A. R., Henneker, W. H., Siebrand, W., & Zgierski, M. Z. (1975). Resonance Raman scattering in molecular dimers. The Journal of Chemical Physics, 63(12), 5475–5489.

Authors 4
  1. A. R. Gregory (first)
  2. W. H. Henneker (additional)
  3. W. Siebrand (additional)
  4. M. Z. Zgierski (additional)
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Dates
Type When
Created 22 years, 6 months ago (Feb. 27, 2003, 3:57 p.m.)
Deposited 1 year, 6 months ago (Feb. 9, 2024, 9:24 a.m.)
Indexed 1 year, 6 months ago (Feb. 9, 2024, 4:27 p.m.)
Issued 49 years, 8 months ago (Dec. 15, 1975)
Published 49 years, 8 months ago (Dec. 15, 1975)
Published Print 49 years, 8 months ago (Dec. 15, 1975)
Funders 0

None

@article{Gregory_1975, title={Resonance Raman scattering in molecular dimers}, volume={63}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.431283}, DOI={10.1063/1.431283}, number={12}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Gregory, A. R. and Henneker, W. H. and Siebrand, W. and Zgierski, M. Z.}, year={1975}, month=dec, pages={5475–5489} }