Electronic Resource
College Park, Md.
:
American Institute of Physics (AIP)
The Journal of Chemical Physics
100 (1994), S. 3624-3630
ISSN:
1089-7690
Source:
AIP Digital Archive
Topics:
Physics
,
Chemistry and Pharmacology
Notes:
Laser photodissociation of IBr is used to observe the deactivation of spin–orbit excited Br(4 2P1/2) (Br*) by ground state atomic I(5 2P3/2). The measured quenching rate constant is kI=1.9±0.2×10−11 cm3/s. A total Br* quenching rate due to both ground state Br(4 2P3/2) and self-quenching by Br* is observed following photodissociation of Br2. The effective rate constant is more than 20 times smaller than kI. The results are compared with Landau, Zener, Stueckelberg (LZS) calculations and other experiments. The consequence of the fast I atom quenching on photodissociation-pumped Br* lasers is discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.466349
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