Kinetics and mechanistic studies of the atmospheric oxidation of alkynes
Kinetics studies of the OH-initiated oxidation of 2-butyne, propyne, and acetylene were conducted at 100 Torr and 298 K using turbulent flow chemical ionization mass spectrometry. The major oxidation products were identified, and with the aid of supporting electronic structure thermodynamics calculations, a general OH-initiated oxidation mechanism for the alkynes is proposed. The major product branching ratio and the product-forming rate constants for the 2-butyne-OH adduct + O2 reaction were experimentally determined as well. The atmospheric implications of the chemical oxidation mechanism and kinetics results are discussed.
Yeung, L.Y., M.J. Pennino, A.M. Miller, and M.J. Elrod. 2005. "Kinetics and Mechanistic Studies of the Atmospheric Oxidation of Alkynes." Journal of Physical Chemistry A 109(9): 1879.
American Chemical Society
Journal of Physical Chemistry A
Chemistry and Biochemistry
Temperature dependence, Branching channel, Rate constant, Gas phase, OH radicals, Acetylene, Hydrocarbons, Photolysis, Emissions