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Title: Spectroscopic study on deuterated benzenes. II. High-resolution laser spectroscopy and rotational structure in the S{sub 1} state

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.
Authors:
; ;  [1] ;  [2] ;  [3] ;  [2] ;  [4]
  1. Division of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502 (Japan)
  2. Institute for Molecular Science, National Institute of Natural Science, Myodaiji, Okazaki 444-8585 (Japan)
  3. Department of Basic Science, Graduated School of Arts and Sciences, The University of Tokyo, Meguro-ku, Tokyo 153-8902 (Japan)
  4. (Japan)
Publication Date:
OSTI Identifier:
22493403
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Chemical Physics; Journal Volume: 143; Journal Issue: 24; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; AMPLIFICATION; ATOMS; BENZENE; DETECTION; DYES; LASER SPECTROSCOPY; MOLECULAR STRUCTURE; MULTI-PHOTON PROCESSES; PHOTOIONIZATION; RESOLUTION; ROTATIONAL STATES; VIBRATIONAL STATES; VISIBLE RADIATION