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| Titel: |
Short-time photodissociation dynamics of nitrocyclopentane and nitrocyclohexane in the gas and solution phases from resonance Raman intensity analysis |
| Auteur: |
HUNG, MEI SZE KWOK, WAI MING PHILLIPS, DAVID LEE |
| Verschenen in: |
Molecular physics |
| Paginering: | Jaargang 93 (1998) nr. 1 pagina's 173-180 |
| Jaar: |
1998-01-01 |
| Inhoud: |
We have obtained B-band resonance Raman spectra of nitrocyclopentane and nitrocyclohexane in the vapour and in cyclohexane solution. The B-band resonance Raman spectra have most of their intensity in the nominal NO2 symmetry stretch progression (nνno2) and the initial Franck—Condon region dynamics changes occur mostly in the two N—O bonds. The absorption spectra and absolute Raman intensities were simulated using time-dependent wavepacket calculations and a simple model. These simulations suggest that very fast electronic dephasing (most probably due to predissociation and/or solvent collisions) competes with wavepacket motion out of the Franck-Condon region and vibrational motion of the rest of the molecule. This probably accounts for the observation that the B-band resonance Raman spectra of all the nitroalkanes studied so far appear very similar to one another. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 14 van 20 gevonden artikelen
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