ISSN:
0538-8066
Schlagwort(e):
Chemistry
;
Physical Chemistry
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
Rate constants for the gas phase reactions of O3 and OH radicals with 1,3-cycloheptadiene, 1,3,5-cycloheptatriene, and cis- and trans-1,3,5-hexatriene and also of O3 with cis-2,trans-4-hexadiene and trans -2,trans -4-hexadiene have been determined at 294 ± 2 K. The rate constants determined for reaction with O3 were (in cm3 molecule-1s-1 units): 1,3-cycloheptadiene, (1.56 ± 0.21) × 10-16; 1,3,5-cycloheptatriene, (5.39 ± 0.78) × 10-17; 1,3,5-hexatriene, (2.62 ± 0.34) × 10-17; cis-2,trans-4-hexadiene, (3.14 ± 0.34) × 10-16; and trans -2, trans -4-hexadiene, (3.74 ± 0.61) × 10-16; with the cis- and trans-1,3,5-hexatriene isomers reacting with essentially identical rate constants. The rate constants determined for reaction with OH radicals were (in cm3 molecule-1 s-1 units): 1,3-cycloheptadiene, (1.31 ± 0.04) × 10-10; 1,3,5-cycloheptatriene, (9.12 × 0.23) × 10-11; cis-1,3,5-hexatriene, (1.04 ± 0.07) × 10-10; and trans 1,3,5-hexatriene, (1.04 ± 0.17) × 10-10. These data, which are the first reported values for these di- and tri-alkenes, are discussed in the context of previously determined O3 and OH radical rate constants for alkenes and cycloalkenes.
Zusätzliches Material:
3 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/kin.550160804
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