Spectroscopic study on deuterated benzenes. II. High-resolution laser spectroscopy and rotational structure in the S{sub 1} state
- Division of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502 (Japan)
- Institute for Molecular Science, National Institute of Natural Science, Myodaiji, Okazaki 444-8585 (Japan)
- Department of Basic Science, Graduated School of Arts and Sciences, The University of Tokyo, Meguro-ku, Tokyo 153-8902 (Japan)
High-resolution spectra of the S{sub 1}←S{sub 0} transition in jet-cooled deuterated benzenes were observed using pulse dye amplification of single-mode laser light and mass-selective resonance enhanced multiphoton ionization (REMPI) detection. The vibrational and rotational structures were accurately analyzed for the vibronic levels in the S{sub 1} state. The degenerate 6{sup 1} levels of C{sub 6}H{sub 6} or C{sub 6}D{sub 6} are split into 6a{sup 1} and 6b{sup 1} in many of deuterated benzenes. The rigid-rotor rotational constants were assessed and found to be slightly different between 6a and 6b because of different mean molecular structures. Their rotational levels are significantly shifted by Coriolis interactions. It was found that the Coriolis parameter proportionally changed with the number of substituted D atoms.
- OSTI ID:
- 22493403
- Journal Information:
- Journal of Chemical Physics, Vol. 143, Issue 24; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-9606
- Country of Publication:
- United States
- Language:
- English
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