Infra-red chemiluminescence from vibrationally excited CO. Part 3.—Reaction of O atoms with CSe2
- 1 January 1972
- journal article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics
- Vol. 68, 2127-2133
- https://doi.org/10.1039/f29726802127
Abstract
Two sets of experiments have been carried out on the reaction of atomic oxygen with CSe2. By flash photolysis mixtures of NO2+ CSe2 with light of wavelengths > 320 nm, it has been shown that the primary reaction is O + CSe2→SeO + CSe, with a rate coefficient ≳ 2 × 10–12 cm3 molecule–1 s–1. When CSe2 was mixed with an excess of O atoms in a flow system, vibrationally excited CO(v⩽20) was produced in the secondary reaction O + CSe→CO + Se. Vibrational distributions were determined from the first overtone CO emission spectra, and some of the relative rates at which CO is produced in different levels (Rv) were derived using a steady state analysis: R10∼0.25; R11= 0.4; R12= 0.45; R13= 0.60; R14= 0.66; R15= 0.72; R16= 0.82; R17= 0.89; R18= 1.0; R19= 0.73; R20∼0.2. The results are compared to those for the analogous reaction between O and CS.Keywords
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