Rate Constant for the Reaction of O(3P) with IO at T = 298 K

Autor:	Louis J. Stief, and Fred L. Nesbitt, Walter A. Payne, R. Peyton ThornJr.
Rok vydání:	1998
Předmět:	Reaction rate constant Absorption spectroscopy Laser photolysis Chemistry Torr Atomic oxygen Analytical chemistry Physical and Theoretical Chemistry Kinetic energy Mass spectrometric
Zdroj:	The Journal of Physical Chemistry A. 102:6247-6250
ISSN:	1520-5215 1089-5639
Popis:	The rate coefficient for the O(3P) + IO reaction has been measured using the discharge-flow kinetic technique coupled to collision-free mass spectrometric detection at 1 Torr nominal pressure (He). IO is generated by the reaction of O with I2; IO then decays in the presence of excess atomic oxygen. A one-parameter fitting to a numerical model gives a rate coefficient of (1.5 ± 0.7) × 10-10 cm3 molecule-1 s-1 at T = 298 K. This result is significantly faster than an earlier estimate but is in good agreement with the only previous study of the reaction which employed laser photolysis combined with absorption spectrophotometry. The present result is compared with those for the reactions O(3P) + XO and X + IO where X = Cl and Br.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::251b84d6da874eba40b1cef5ff7daa32 https://doi.org/10.1021/jp9811530 Zobrazit plný text záznamu