The UV Raman spectra of N-methylacetamide (NMA) were measured in and between the visible H 2 O D 2 O spectral region and the UV region down to 184 nm. The Raman excitation proรles indicate that all of the amide bands are resonance enhanced by the รrst dipole-allowed p ร p\* transition at 190 nm. The
On the nature of the lowest excited states of styrene: Calculation of the resonance Raman spectrum and pre-resonance profiles
โ Scribed by G. Marconi
- Publisher
- John Wiley and Sons
- Year
- 1983
- Tongue
- English
- Weight
- 383 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0377-0486
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โฆ Synopsis
Abstract
The nature of the lowโlying excited single states of styrene has been investigated through calculation of the resonance Raman spectrum and preโresonance Raman profiles of the three modes of C๏ฃพC stretching nature. A reasonable agreement with experiment is found and an analysis of the main contributions to the intensity is provided in terms of vibronic matrix elements. The possibility of destructive interference of diagonal and offโdiagonal terms is analysed for the three modes examined.
๐ SIMILAR VOLUMES
A general formalism for resonance Raman scattering is presented which treats both linear and quadratic electronphoton interactions. The time correlation functions which are involved in resonance Raman scattering both from a single vibronic state and from the initially distributed vibronic states are