||Rate Constants for the Gas-Phase Reactions of OH Radicals with a Series of Bi- and Tricycloalkanes at 299 + or - 2 K: Effects of Ring Strain.
Atkinson, R. ;
Aschmann, S. M. ;
Carter, W. P. L. ;
||California Univ., Riverside. Statewide Air Pollution Research Center.;Environmental Sciences Research Lab., Research Triangle Park, NC.
Reaction kinetics ;
Cycloalkane hydrocarbons ;
Air pollution ;
Molecular structure ;
Hydroxyl radicals ;
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Relative rate constants for the gas phase reactions of OH radicals with a series of bi- and tri-cyclic alkanes have been determined at 299 + or - 2K, using methyl nitrite photolysis in air as a source of OH radicals. The data show that overall ring strain energies of < or - 4-5 kcal mole-1 have no significant effect on the rate constants, but that larger ring strain results in the rate constants being decreased, relative to those expected for the strain-free molecules, by ratios which increase approximately exponentially with the overall ring strain.