A selected ion flow tube study of the reactions of H3O+, NO+ and O-2(center dot+) with some oxygenated biogenic volatile organic compounds

摘要

The rate constants and product ion distributions of the reactions of H3O+, NO+ and O-2(center dot+) with 2-methyl-3-buten-2-ol, cis-3-hexen-1-ol, cis-3-hexenyl acetate, 1,8-cineole, 6-methyl-5-hepten-2-one, camphor and linalool have been determined at 150Pa and 297K using a selected ion flow tube (SIFT). All reactions were found to proceed at a rate close to the collision rate, calculated with the Su and Chesnavich model, using the polarizability and electric dipole moment of the compounds derived from B3LYP/aug-cc-pVDZ quantum chemical calculations. Additionally the product ion distributions of the reactions of these three ions with the terpenoid alcohols nerol and geraniol have been obtained. (c) 2005 Elsevier B.V. All rights reserved.