Rate parameters for reaction of atomic selenium with ethylene
- 1 January 1966
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Transactions of the Faraday Society
- Vol. 62, 371-378
- https://doi.org/10.1039/tf9666200371
Abstract
Atomic selenium was monitored in flashed CSe2 by kinetic absorption spectroscopy, and its rate of reaction with ethylene was measured in the temperature range 302–412°K. The rate of appearance of a new spectrum in the far ultra-violet was symmetrical with the atomic decay, and was tentatively assigned to ethylene selenide. The rate constants were expressed as k= 1.8±0.60×10–11 exp (–2810±200 (cal)/RT)cm3 sec–1 molecule–1. Ethylene was shown to be a very efficient third body for atomic selenium recombination, apparently because of a fast abstraction of the selenium atom from ethylene selenide to regenerate ethylene. A number of olefin selenide spectra were listed.Keywords
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