Reaction of C_2(a^3Pi_u) with methanol: Temperature dependence and deuterium isotope effect

Abstract

We present a first temperature dependence and kinetic isotope effect study on the reaction of C_2(a^3Pi_u) with methanol. The bimolecular rate constants for a series of methanol isotopomers have been measured as a function of temperature between 293 and 673 K. The observed positive temperature dependences as well as deuterium kinetic isotope effects permit determination of the reaction mechanism as a site-specific hydrogen abstraction from the methyl site rather than from the hydroxyl site.

arXiv comment27 pages, 6 figures, 3 tables, 54 references; accepted to JCP

References in corpus (1)

• Reactions of C${}_2$({\it a}${}^{3}P{i}_u$) with selected saturated alkanes: A temperature dependence study