期刊
JOURNAL OF APPLIED SPECTROSCOPY
卷 75, 期 3, 页码 336-340出版社
SPRINGER
DOI: 10.1007/s10812-008-9050-5
关键词
supersonic jet; fluorescence excitation spectrum; fluorescence polarization; electronic transition; indole
类别
资金
- International Science and Technology Center [B-1332]
The dependence of the fluorescence polarization degree on frequency upon excitation into the first and second electronic bands of jet-cooled indole has been studied. A structured band consisting of a number of lines rather than a single line has been recorded in the spectral range of the electronic (1)A'-L-1(a)-transition. The appearance of the lines is interpreted as the result of nonadiabatic vibronic interaction between the electronic L-1(a)-state and vibronicl states of the indole molecule L-1(b)-level. The energy of the unperturbed electronic L-1(a)-level and the orientation of dipole moments near the (1)A'-L-1(a)-transition have been found.
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