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Excitation wavelength dependence of enhanced Raman bands of aggregated molecules

✍ Scribed by D.L. Akins; J.R. Lombardi

Publisher: Elsevier Science
Year: 1987
Tongue: English
Weight: 530 KB
Volume: 135
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(87)85198-9

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✦ Synopsis

An expression for aggregated molecules is developed for the wavelength dependence of the intensity of Raman bands that gain there intensity from the Franck-Condon term of the polarizability alone. A Raman excitation spectrum resonance is identified for such bands, which can be used to determine dipole-dipole interaction energies and structural information for certain types of aggregates. In addition, it is discussed how such bands can serve as internal standards to isolate the dependency of Raman intensities on the energy separation between the single molecule energy level and the substrate energy state.

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