High resolution near-infrared electronic spectroscopy of HCBr
Creators
- 1. Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11973-5000 (United States)
Description
The rotationally resolved spectrum of the HCBr A1A double-prime(0,2,0)left-arrow X1A'(0,0,0) Ka=0 left-arrow 1 transition between 12760 and 12850 cm-1 was obtained for the first time at Doppler-limited resolution using a transient frequency-modulation absorption technique. Rotational structure of HC79Br and HC81Br was identified and analyzed. The analysis shows R double-prime(C endash Br)=1.852 A and R'(C endash Br)=1.749 A. The observed band indicates a linear endash bent transition. This yields an upper limit of approximately 1600 cm-1 for the barrier to linearity above the zero-point energy for the A1A double-prime state. Perturbations caused by singlet endash triplet interactions were also found in the observed spectrum. The analysis of these perturbations indicates a very low-lying a3A double-prime state. copyright 1996 American Institute of Physics
Additional details
Publishing Information
- Journal Title
- Journal of Chemical Physics
- Journal Volume
- 105
- Journal Issue
- 6
- Journal Page Range
- p. 2135-2140.
- ISSN
- 0021-9606
- CODEN
- JCPSA6
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 27078870
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS;
- Descriptors DEI
- BROMINE; ELECTRONIC STRUCTURE; FREQUENCY MODULATION; INFRARED SPECTRA; METHYLENE RADICALS; NEAR INFRARED RADIATION; ROTATIONAL STATES; SODIUM CHLORIDES
- Descriptors DEC
- ALKALI METAL COMPOUNDS; CHLORIDES; CHLORINE COMPOUNDS; ELECTROMAGNETIC RADIATION; ELEMENTS; ENERGY LEVELS; EXCITED STATES; HALIDES; HALOGEN COMPOUNDS; HALOGENS; INFRARED RADIATION; MODULATION; NONMETALS; RADIATIONS; RADICALS; SODIUM COMPOUNDS; SPECTRA