Acta Optica Sinica, Volume. 20, Issue 6, 769(2000)
Study on S1State in Pyridine Gas by (2+3) PRMPI Spectra
The rovibronic structure on the first electronic excited state (S1) in gaseous pyridine was studied in its (2+3) polarization resonance multiphoton ionization (PRMPI) spectra excited by circularly and linearly polarized laser respectively. In the spectra, double-peak rovibronic bands were mostly observed. The result indicates that all the vibronic bands were assigned to various mixed-frequency bands of ν6a, ν10a, ν12, ν16b and ν17a in S1 and ν9a in S0. It is assigned that the frequency of ν17a in S1state is 670 cm-1, and the ν17a frequency decreasing in S1state is attributed to the similar mechanism undergone by ν10a.
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[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. Study on S1State in Pyridine Gas by (2+3) PRMPI Spectra[J]. Acta Optica Sinica, 2000, 20(6): 769