# HIGH RESOLUTION INFRARED DIODE LASER SPECTROSCOPY OF $X^{2}\Pi$ CBr

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 Title: HIGH RESOLUTION INFRARED DIODE LASER SPECTROSCOPY OF $X^{2}\Pi$ CBr Creators: Marr, Andrew J.; Sears, Trevor J.; Davies, P. B. Issue Date: 1997 Publisher: Ohio State University Abstract: The infrared spectrum of the $X^{2}\Pi$ state of CBr from 680 - 750 $cm^{-}1$ has been measured using diode laser absorption spectroscopy. The CBr radicals were produced by 193 nm excimer photolysis of bromoform. Transitions belonging to the $v = 1 \leftarrow 0,2 \leftarrow 1,3 \leftarrow 2$ and $4 \leftarrow 3$ bands of both isotopomers, $C^{79}$Br and $C^{81}$Br have been identified. Employing {case}(a) matrix elements, spectroscopic parameters were obtained from a least squares fit where the transition frequencies of both isotopomers were fitted simultaneously. The results were used to obtain a Rydberg-Klein-Rees (RKR) potential. Additionally, the kinetics of the CBr + $O_{2}$ reaction were investigated. This is first recording of vibrational spectra of CBr. Acknowledgements: This work was carried out at Brookhaven National Laboratory under Contract No. DE-AC02-76CH00016 with the U.S. Department of Energy and support by its Division of Chemical Sciences, Office of Basic Energy Sciences. Support was also provided by a NATO Collaborative Research Grant, No. CRG 940066. Description: Author Institution: Department of Chemistry, Brookhaven National Laboratory; Department of Chemistry, University of Cambridge URI: http://hdl.handle.net/1811/13983 Other Identifiers: 1997-RH-03