Time-resolved resonance fluorescence study of electronically excited iodine atoms. Quenching of I(52P½) by C2D4, C3D6and CD3I
- 1 January 1977
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics
- Vol. 73 (7) , 1553-1560
- https://doi.org/10.1039/f29777301553
Abstract
An improved system for the kinetic study of electronically excited iodine atoms I(52P½), by time-resolved atomic resonance fluorescence, is described. Rate coefficients for quenching of I(52P½) by CD3I, C2D4 and C3D6 have been determined as k/cm3 molecule–1 s–1=(4.2 ± 0.2)× 10–15, (3.1 ± 0.2)× 10–15 and (4.6 ± 0.4)× 10–15 respectively. These values are more than an order of magnitude lower than those for the corresponding hydrogen-containing species. For CD3I, satisfactory agreement with the atomic resonance absorption technique is noted. Data for C2D4, C3D6 and undeuterated olefins are discussed in terms of the formation of an intermediate complex.Keywords
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