ISSN:
0538-8066
Keywords:
Chemistry
;
Physical Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Gas-phase rate constants for the reaction of NO2 with 16 conjugated olefins were determined at room temperature by either conventional methods for bimolecular processes or by competitive reactions. It was found that the rate constants for conjugated olefins were larger than those for simple mono-olefins by factors of 103-104. Temperature dependence studies reveal that the difference in the rate constants for the two types of reactions can primarily be attributed to differences in their activation energies: k1,3-cyclohexadiene = 5.8 × 10-14 exp[-(6.1 ± 1.6)/RT] cm3 molecule-1 s-1; kcis-2-butene = 4.68 × 10-14 exp(-11.2/RT) cm3 molecule-1 s-1 [2]. A linear free energy relationship between the reactions of OH and NO2 with conjugated diolefins was observed.
Additional Material:
7 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/kin.550180102
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