Selective Laser Photocatalysis of Bromine Reactions
- 7 July 1967
- journal article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 157 (3784) , 40-43
- https://doi.org/10.1126/science.157.3784.40
Abstract
The results have shown that selective excitation obtained with a tunable monochromatic laser is a useful technique for studying photochemical and energy transfer processes. A new phenomenon in the photochemistry of bromine was observed, in which bound excited molecules, and not atoms, were formed in the primary process. The mechanism of the subsequent reaction consists of collisional dissociation of the excited molecules into atoms, which then initiated free-radical chains. A quantitative estimate of the collisional electronic relaxation rate for excited bromine molecules was obtained, and a new upper limit to the continuous absorption strength at 14,400 cm-1 was determined.Keywords
This publication has 21 references indexed in Scilit:
- Reactions of Diatomic Molecules. II. Predictions and Comparisons with ExperimentJournal of the American Chemical Society, 1966
- Reactions of Diatomic Molecules. I. A Method for Predicting MechanismsJournal of the American Chemical Society, 1966
- Chemical Reactions induced in Gases by means of a LaserNature, 1966
- LASER ORGANIC CHEMISTRYAnnals of the New York Academy of Sciences, 1965
- Effect of Temperature and Br2/Ar Ratio on the Rates of Recombination of Br Atoms Produced by Flash Photolysis of Gaseous Br2Journal of the American Chemical Society, 1959
- Shock Waves in Chemical Kinetics. Rate of Dissociation of Molecular BromineThe Journal of Chemical Physics, 1956
- The Mechanism of Halogen-atom Catalyzed cis—trans Isomerization. Studies with Bromine and DibromoethyleneJournal of the American Chemical Society, 1952
- Note on the interpretation of the visible absorption spectrum of bromineProceedings of the Physical Society, 1947
- Halogen Molecule Spectra. II. Interval Relations and Relative Intensities in the Long Wave-Length SpectraPhysical Review B, 1940
- The absorption spectrum of bromine in the near infra-redProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1937