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Rate constants for the gas-phase reactions of chlorine atoms with a series of ketones

✍ Scribed by A. Notario; A. Mellouki; G. Le Bras

Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 77 KB
Volume: 32
Category: Article
ISSN: 0538-8066
DOI: 10.1002/(sici)1097-4601(2000)32:1<62::aid-jck7>3.0.co;2-3

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✦ Synopsis

The pulsed laser photolysis-resonance fluorescence technique has been used to determine the absolute rate coefficient for the Cl atom reaction with a series of ketones, at room temperature (298 Ϯ 2) K and in the pressure range 15-60 Torr. The rate coefficients obtained (in units of cm 3 molecule Ϫ1 s Ϫ1 ) are: acetone (3.06 Ϯ 0.38) ϫ 10 Ϫ12 , 2-butanone (3.24 Ϯ 0.38) ϫ 10 Ϫ11 , 3-methyl-2-butanone (7.02 Ϯ 0.89) ϫ 10 Ϫ11 , 4-methyl-2-pentanone (9.72 Ϯ 1.2) ϫ 10 Ϫ11 , 5-methyl-2-hexanone (1.06 Ϯ 0.14) ϫ 10 Ϫ10 , chloroacetone (3.50 Ϯ 0.45) ϫ 10 Ϫ12 , 1,1-dichloroacetone (4.16 Ϯ 0.57) ϫ 10 Ϫ13 , and 1,1,3-trichloroacetone (Ͻ2.4 ϫ 10 Ϫ12 ).

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