Rate constants for the gas‐phase reactions of O3with a series of cycloalkenes at 296 ± 2 K

International Journal of Chemical Kinetics - Tập 37 Số 3 - Trang 183-190 - 2005
Roland D. Cusick1, Roger Atkinson1,2
1Air Pollution Research Center, University of California, Riverside, CA 92521
2Department of Environmental Sciences and Department of Chemistry, University of California, Riverside, CA 92521

Tóm tắt

AbstractUsing a relative rate method, rate constants for the gas phase reactions of O3with 1‐ and 3‐methylcyclopentene, 1‐, 3‐, and 4‐methylcyclohexene, 1‐methylcycloheptene,cis‐cyclooctene, 1‐ and 3‐methylcyclooctene, 1,3‐ and 1,5‐cyclooctadiene, and 1,3,5,7‐cyclooctatetraene have been measured at 296 ± 2 K and atmospheric pressure of air. The rate constants obtained (in units of 10−18cm3molecule−1s−1) are 1‐methylcyclopentene, 832 ± 24; 3‐methylcyclopentene, 334 ± 12; 1‐methylcyclohexene, 146 ± 10; 3‐methylcyclohexene, 55.3 ± 2.6; 4‐methylcyclohexene, 73.1 ± 3.6; 1‐methylcycloheptene, 930 ± 24;cis‐cyclooctene, 386 ± 23; 1‐methylcyclooctene, 1420 ± 100; 3‐methylcyclooctene, 139 ± 9;cis,cis‐1,3‐cyclooctadiene, 20.0 ± 1.4; 1,5‐cyclooctadiene, 152 ± 10; and 1,3,5,7‐cyclooctatetraene, 2.60 ± 0.19, where the indicated errors are two least‐squares standard deviations and do not include the uncertainties in the rate constants for the reference alkenes (propene, 1‐butene,cis‐2‐butene,trans‐2‐butene, 2‐methyl‐2‐butene, and terpinolene). These rate data are compared with the few available literature data, and the effects of methyl substitution discussed. © 2005 Wiley Periodicals, Inc. Int J Chem Kinet 37: 183–190, 2005

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Thông tin xuất bản

International Journal of Chemical Kinetics

Tập 37 Số 3

183-190

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