Author(s)

Olivier Perrin, Adolphe Heiss, Krikor Sahetchian, Lucien Kerhoas and Jacques Einhorn

Abstract

Hydrocarbons Able to Increase Tropospheric Ozone during Summer Anticyclonic Periods: Isomerisation Reactions of HOROi Radicals A contribution to subproject CMD Olivier Perrin\ Adolphe Heiss*, Krikor Sahetchian\ Lucien Kerhoas^ and Jacques Einhonf * Laboratoire de Mecanique Physique, CNRS UPRESA 7068, Universite P, & M. Curie (Paris 6), 2, Place de la Gare de Ceinture, 78210 Saint-Cyr I'Ecole, France * Unite de Phytopharmacie et Mediateurs Chimiques, INRA, Route de St-Cyr, 78026 Versailles Cedex, France Introduction Alkoxy RO radicals are key intermediates in the degradation of hydrocarbons RH and VOCs in the troposphere. Intramolecular H shift isomerisation via a six-member ring transition state is the main reaction of long chain (> €4) RO radicals in O:/N2 mixtures, and accounts for the diversity of products (Heiss and Sahetchian, 1996; Jorand et al, 1996). The isomerised R_nOH r

Keywords