Observation of the nu(CH) excited vibrational levels in the (A)over-tilde(1)A '' state of HCP by IR-UV double resonance spectroscopy

Authors
Ishikawa, H Nagao, C Mikami, N
Citation
H. Ishikawa et al., Observation of the nu(CH) excited vibrational levels in the (A)over-tilde(1)A '' state of HCP by IR-UV double resonance spectroscopy, J MOL SPECT, 194(1), 1999, pp. 52-60
Citations number
21
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
JOURNAL OF MOLECULAR SPECTROSCOPY
ISSN journal
00222852 → ACNP
Volume
194
Issue
1
Year of publication
1999
Pages
52 - 60
Database
ISI
SICI code
0022-2852(199903)194:1<52:OOTNEV>2.0.ZU;2-B
Abstract
Rovibrational levels with one quantum of CH stretch mode, (1, nu(2), nu(3)) , in the (A) over tilde(1)A " electronic state of HCP were observed for the first time by IR-W double resonance spectroscopy. Nine vibrational levels were identified in the energy region of 37 500-40 800 cm(-1). Perturbations similar to those in the (0, nu(2), nu(3)) levels were also observed in man y of the vibrational levels. It was found that the CH stretch frequency in the (A) over tilde(1)A " State is reduced about 270 cm(-1) relative to that of the electronic ground state. (C) 1999 Academic Press.