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High-Resolution Infrared Diode Laser Spectroscopy of CBr

✍ Scribed by Andrew J. Marr; Trevor J. Sears; Paul B. Davies

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
572 KB
Volume
184
Category
Article
ISSN
0022-2852

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✦ Synopsis

The infrared spectrum of the X 2 P state of CBr from 680 to 760 cm 01 has been measured using diode laser absorption spectroscopy. This is the first observation of a vibrational spectrum of the radical in the gas phase. The radicals were produced by 193 nm excimer laser photolysis of bromoform. Transitions belonging to the n Γ… 1 R 0, 2 R 1, 3 R 2, and 4 R 3 bands of both isotopomers, C 79 Br and C 81 Br, have been identified. Spectroscopic parameters were obtained from a least-squares fit to an effective Hamiltonian where the transition frequencies of both isotopomers were fitted simultaneously. The results were used to obtain a Rydberg-Klein-Rees potential.

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