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Unimolecular Dissociation of H<sup>+</sup><sub style="margin-left:-6px;">2n+1</sub>Hydrogen Clusters: Measured Cross Sections and Theoretically Calculated Rate Constants

Unimolecular Dissociation of H<sup>+</sup><sub style="margin-left:-6px;">2n+1</sub>Hydrogen Clusters: Measured Cross Sections and Theoretically Calculated Rate Constants
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摘要 In this paper, we studied the process of dissociation unimolecular of the evaporation of H+2n+1 hydrogen clusters according to size, using the Rice-Ramsperger-Kassel-Marcus (RRKM) theory. The rate constants k(E) were determined with the use of statistical theory of unimolecular reactions using various approximations. In our work, we used the products frequencies instead of transitions frequencies in the calculation of unimolecular dissociation rates obtained by three models RRKM. The agreement between the experimental cross section ratio and calculated rate ratio with direct count approximation seems to be reasonable. In this paper, we studied the process of dissociation unimolecular of the evaporation of H+2n+1 hydrogen clusters according to size, using the Rice-Ramsperger-Kassel-Marcus (RRKM) theory. The rate constants k(E) were determined with the use of statistical theory of unimolecular reactions using various approximations. In our work, we used the products frequencies instead of transitions frequencies in the calculation of unimolecular dissociation rates obtained by three models RRKM. The agreement between the experimental cross section ratio and calculated rate ratio with direct count approximation seems to be reasonable.
出处 《World Journal of Condensed Matter Physics》 2013年第4期207-215,共9页 凝固态物理国际期刊(英文)
关键词 RRKM Rice-Ramsperger-Kassel-Marcus Direct Count METHOD Classical METHOD Whitten-Rabinovitch METHOD High-Energy CLUSTER Collision FRAGMENTATION Phenomena CLUSTER FRAGMENTATION IONIC HYDROGEN Clusters Ion-Atom Collisions IONIC CLUSTER Cross Sections Molecular Dissociation Size Effect Metastable States HYDROGEN Ions RRKM Rice-Ramsperger-Kassel-Marcus Direct Count Method Classical Method Whitten-Rabinovitch Method High-Energy Cluster Collision Fragmentation Phenomena Cluster Fragmentation Ionic Hydrogen Clusters Ion-Atom Collisions Ionic Cluster Cross Sections Molecular Dissociation Size Effect Metastable States Hydrogen Ions
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