| Attributs | Valeurs |
|---|
| type
| |
| Is Part Of
| |
| Subject
| |
| Title
| - Fluorescence and Ultraviolet Absorption Spectra, and the Structure and Vibrations of1,2,3,4-Tetrahydronaphthalene in Its S1(π,π*) State
|
| has manifestation of work
| |
| related by
| |
| Author
| |
| Abstract
| - The ultraviolet absorption spectra in the static vapor phase and the laser induced fluorescence spectra (bothfluorescence excitation and single vibronic level fluorescence spectra) of jet-cooled 1,2,3,4-tetrahydronaphthalene have been used along with theoretical calculations to assign many of the vibronic levels in the S1(π,π*)state. These have been compared to the corresponding vibrational levels for the S0 ground state. Analysis ofthe upper states of the ring-twisting vibration ν31 and three other low-frequency modes has allowed us toconstruct an energy map of the lowest vibrational quantum states for both S0 and S1. The molecule is highlytwisted in both electronic states with high barriers to planarity, which are calculated to be 4811 cm-1 for S0and 5100 cm-1 for S1. However, the experimental data show that the barrier should be lower in the S1 state.
|
| article type
| |
| is part of this journal
| |
