Rotationally resolved near-infrared spectrum of HCBr

Conference · Tue Dec 31 04:00:00 EST 1996

OSTI ID:437233

Chang, Bor-Chen; Sears, T J ^[1]

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1. Brookhaven National Lab., Upton, NY (United States)

The rotationally resolved spectrum of bromomethylene (HCBr) in the vicinity of 12800 cm{sup -1} was obtained at Doppler-limited resolution using a transient frequency-modulation absorption technique. In contrast to the better studied halo-methylenes (HCF and HCCl), the number of experimental investigations on HCBr is very limited. Xu et al. reported the spectrum at visible wavelengths, but no rotational structure was resolved. Gilles et al. have used photoelectron spectroscopy to determine the singlet-triplet separation to be 2.6{+-}2.2 kcal/mol. Based upon previous studies, the authors tentatively assign the observed band to be the A{sup 1}A{double_prime}(0,2,0){r_arrow}x{sup 1}A{prime}(0,0,0) transition. The analysis of the observed spectrum will be discussed.

• Research Organization: Brookhaven National Laboratory (BNL), Upton, NY
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 437233
• Report Number(s): CONF-9606118--
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
ABSORPTION SPECTROSCOPY
NEAR INFRARED RADIATION
ORGANIC BROMINE COMPOUNDS
ROTATIONAL STATES