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Tsikritea A, Diprose JA, Softley TP, Heazlewood BR. Capture Theory Models: An overview of their development, experimental verification, and applications to ion-molecule reactions. J Chem Phys 2022; 157:060901. [DOI: 10.1063/5.0098552] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Since Arrhenius first proposed an equation to account for the behaviour of thermally activated reactions in 1889, significant progress has been made in our understanding of chemical reactivity. A number of capture theory models have been developed over the past several decades to predict the rate coefficients for reactions between ions and molecules-ranging from the Langevin equation (for reactions between ions and non-polar molecules) to more recent fully quantum theories (for reactions at ultra-cold temperatures). A number of different capture theory methods are discussed, with the key assumptions underpinning each approach clearly set out. The strengths and limitations of these capture theory methods are examined through detailed comparisons between low-temperature experimental measurements and capture theory predictions. Guidance is provided on the selection of an appropriate capture theory method for a given class of ion-molecule reaction and set of experimental conditions-identifying when a capture-based model is likely to provide an accurate prediction. Finally, the impact of capture theories on fields such as astrochemical modelling is noted, with some potential future directions of capture-based approaches outlined.
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Affiliation(s)
| | - Jake A Diprose
- University of Liverpool Department of Physics, United Kingdom
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Smith MA, Yuan B, Sanov A. Variable-Temperature Rate Coefficients of Proton-Transfer Equilibrium Reaction C 2H 4 + H 3O + ⇄ C 2H 5+ + H 2O Measured with a Coaxial Molecular Beam Radio Frequency Ring Electrode Ion Trap. J Phys Chem A 2012; 116:11596-600. [DOI: 10.1021/jp306372v] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mark A. Smith
- Department of Chemistry
and Biochemistry, University of Arizona, 1306 East University Boulevard, Tucson, Arizona 85721, United States
- Department of Planetary
Science, Lunar and Planetary Laboratory, University of Arizona, 1629 East University Boulevard,
Tucson, Arizona 85721, United States
- Department of Chemistry, University of Houston, Houston, Texas
77204, United States
| | - Bing Yuan
- Department of Chemistry
and Biochemistry, University of Arizona, 1306 East University Boulevard, Tucson, Arizona 85721, United States
| | - Andrei Sanov
- Department of Chemistry
and Biochemistry, University of Arizona, 1306 East University Boulevard, Tucson, Arizona 85721, United States
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