Issue 21, 2004

A theoretical study of the reactions of parent and substituted Criegee intermediates with water and the water dimer

Abstract

A theoretical study was performed involving the reactions of a series of atmospherically significant Criegee intermediates (CIs), including parent, mono- and dimethyl - substituted CIs, with water and the water dimer at the CCSD(T)//B3LYP/6-311+G(2d,2p) level. We investigated two reaction routes leading to α-hydroxyalkyl hydroperoxide (HAHP). According to our calculations, the most favorable route is the formation of HAHP as the result of reactions of CIs with the water dimer. The rate constants for both pathways were calculated and the dependence of overall rate constant on temperature and relative humidity was also evaluated. The implication of our results to the chemistry of the troposphere is herein discussed.

Article information

Article type
Paper
Submitted
03 Jun 2004
Accepted
13 Aug 2004
First published
02 Sep 2004

Phys. Chem. Chem. Phys., 2004,6, 5042-5050

A theoretical study of the reactions of parent and substituted Criegee intermediates with water and the water dimer

A. B. Ryzhkov and P. A. Ariya, Phys. Chem. Chem. Phys., 2004, 6, 5042 DOI: 10.1039/B408414D

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