Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 11, 1987
Previous Article Next Article

Absolute determinations of the kinetics and temperature dependences of the reactions of OH with a series of alkynes

Abstract

The rates of reaction of OH with propyne, but-1-yne, but-2-yne, pent-1-yne and hex-1-yne have been measured directly by using a discharge-flow resonance-fluorescence technique over a range of temperatures from 253 to 343 K. The room-temperature rate coefficients are compared with previous determinations; the new values for pent-1-yne and hex-1-yne fit into a general pattern of reactivity consistent with a mechanism involving initial electrophilic attack of OH at the triple bond. Similar trends are also presented for other series of reactions between radicals and unsaturated organic molecules. The temperature dependences of the rate constants for the OH + alkyne reactions are small or negative, suggesting that adduct formation is the initial step in the reaction mechanism.

Back to tab navigation

Article information


J. Chem. Soc., Faraday Trans. 2, 1987,83, 2073-2080
Article type
Paper

Absolute determinations of the kinetics and temperature dependences of the reactions of OH with a series of alkynes

R. B. Boodaghians, I. W. Hall, F. S. Toby and R. P. Wayne, J. Chem. Soc., Faraday Trans. 2, 1987, 83, 2073
DOI: 10.1039/F29878302073

Search articles by author

Spotlight

Advertisements