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Dispersed fluorescence spectroscopy of jet-cooled DCO

✍ Scribed by Joseph D. Tobiason; James R. Dunlop; Eric A. Rohlfing

Publisher: Elsevier Science
Year: 1995
Tongue: English
Weight: 617 KB
Volume: 235
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(95)00102-a

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✦ Synopsis

We obtain dispersed fluorescence (DF) spectra of jet-cooled DCO from three excited-state levels in the 13 2/~_~ 2/( system. These spectra yield term energies and relative fluorescence intensities for 112 levels (mostly quasibound resonances) of DCO ()0 over an energy range of 0-19000 cm 1. We make zeroth-order, normal-mode vibrational assignments to 99 levels; however, their term energies are not well described by the customary (Dunham) expression due to extensive vibrational mixing and the weak C-D bond. The use of an improved spectroscopic Hamiltonian that includes Fermi resonance and Darling-Dennison coupling terms is discussed.

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