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Rate constants for the gas-phase reactions of OH radicals with a series of bi- and tricycloalkanes at 299 ± 2 K: Effects of ring strain

✍ Scribed by Roger Atkinson; Sara M. Aschmann; William P. L. Carter

Publisher
John Wiley and Sons
Year
1983
Tongue
English
Weight
679 KB
Volume
15
Category
Article
ISSN
0538-8066

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✦ Synopsis

Relative rate constants for the gas-phase reactions of OH radicals with a series of bi-and tricyclic alkanes have been determined at 299 f 2 K, using methyl nitrite photolysis in air as a source of OH radicals. Using a rate constant for the reaction of OH radicals with cyclohexane of 7.57 X cm3/molec.s, the rate constants obtained are (X 10l2 cm3/molec.s): bicyclo[2.2.1]heptane, 5.53 f 0.15; bicyclo[2.2.2]octane, 14.8 f 1.0; bicyclo[3.3.0]octane, 11.1 f 0.6; cis-bicyclo[4.3.0]nonane, 17.3 f 1.3; trans-bicyclo[4.3.0]nonane, 17.8 f 1.3; cis-bicyclo[4.4.0]decane, 20.1 f 1.4; trans-bicyclo[4.4.0]decane, 20.6 f 1.2; tricyclo[5.2.1.02~6]decane, 11.4 & 0.4; and tricyclo[3.3.1.13.7]decane, 23.2 f 2.

  1. These data show that overall ring strain energies of 54-5 kcal mol-' 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.

📜 SIMILAR VOLUMES

Rate constants for the gas-phase reactio
Rate constants for the gas-phase reaction of OH radicals with a series of ketones at 299 ± 2 K
✍ Roger Atkinson; Sara M. Aschmann; William P. L. Carter; James N. Pitts Jr. 📂 Article 📅 1982 🏛 John Wiley and Sons 🌐 English ⚖ 475 KB 👁 1 views

## Abstract Relative rate constants for the reaction of OH radicals with a series of ketones have been determined at 299 ± 2 K, using methyl nitrite photolysis in air as a source of hydroxyl radicals. Using a rate constant for the reaction of OH radicals with cyclohexane of 7.57 × 10^−12^ cm^3^ mol

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Rate constants for the reaction of OH radicals with a series of alkanes and alkenes at 299 ± 2 K
✍ Roger Atkinson; Sara M. Aschmann; Arthur M. Winer; James N. Pitts Jr. 📂 Article 📅 1982 🏛 John Wiley and Sons 🌐 English ⚖ 492 KB 👁 1 views

## Abstract Using methyl nitrite photolysis in air as a source of hydroxyl radicals, relative rate constants for the reaction of OH radicals with a series of alkanes and alkenes have been determined at 299 ± 2 K. The rate constant ratios obtained are: relative to __n__‐hexane = 1.00, neopentane 0.1

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Rate constants for the gas-phase reactions of the OH radical with a series of aromatic hydrocarbons at 296 ± 2 K
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Using a relative rate method, rate constants have been determined at 296 5 2 K for the gas-phase reactions of the OH radical with toluene, the xylenes, and the trimethylbenzenes. Using the recommended literature rate constant for the reaction of OH radicals with propene of (2.66 2 0.40) x lo-" cm3 m

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Rate constants for the gas-phase reactions of the OH radical with a series of monoterpenes at 294 ± 1 K
✍ Roger Atkinson; Sara M. Aschmann; James N. Pitts Jr. 📂 Article 📅 1986 🏛 John Wiley and Sons 🌐 English ⚖ 593 KB

Using a relative rate technique, rate constants for the gas-phase reactions of the OH radical with a series of monoterpenes have been determined in one atmosphere of air at 294 5 1 K. Relative to a rate constant for the reaction of OH radicals with 2,3-dimethyl-2-butene of 1.12 lo-'' cm3 molecule-'