Abstract
Abstract. This article, the fourth in the series, presents kinetic and photochemical data sheets evaluated by the IUPAC Subcommittee on Gas Kinetic Data Evaluation for Atmospheric Chemistry. It covers the gas phase and photochemical reactions of organic halogen species, which were last published in 1997, and were updated on the IUPAC website in 2006/07. The article consists of a summary sheet, containing the recommended kinetic parameters for the evaluated reactions, and four appendices containing the data sheets, which provide information upon which the recommendations are made.
Highlights
In the mid 1970s it was appreciated that there was a need for the establishment of an international panel to produce a set of critically evaluated rate parameters for reactions of interest for atmospheric chemistry
This article, the fourth in the series, presents kinetic and photochemical data sheets evaluated by the IUPAC Subcommittee on Gas Kinetic Data Evaluation for Atmospheric Chemistry
For second-order rate coefficients listed in this evaluation, an estimate of the uncertainty at any given temperature within the recommended temperature range may be obtained from the equation: log k(T ) = log k(298 K) + 0.4343{ either in (E/R)(1/T − 1/298)}
Summary
In the mid 1970s it was appreciated that there was a need for the establishment of an international panel to produce a set of critically evaluated rate parameters for reactions of interest for atmospheric chemistry To this end the CODATA Task Group on Chemical Kinetics, under the auspices of the International Council of Scientific Unions (ICSU), was con-. FOx Reactions - based on data sheets in Appendix 1, and on the IUPAC website updated in 2005. ClOx Reactions - based on data sheets in Appendix 2, and on the IUPAC website updated in 2005. BrOx Reactions - based on data sheets in Appendix 3, and on the IUPAC website updated in 2005. IOx Reactions – based on data data sheets in Appendix 4, and on the IUPAC website updated in 2005. CH2I2 + hν → products a The cited uncertainty is an expanded uncertainty corresponding approximately to a 95% confidence limit
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