Branching Ratios of Recombination and Neutralization Reactions in the Positive ion–Negative Ion Reactions of Kr^+ and Xe^+ with C_6F_5Br^- and C_6F_5CF_3^- in the Flowing Afterglow

Autor: TSUJI, Masaharu, ISHIMI, Hiroaki, UTO, Keiko, HAYASHI, Jun-Ichiro, Tsuji, Takeshi
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: 九州大学大学院総合理工学報告. 45(1):25-30
ISSN: 1346-7883
Popis: The positive ion–negative ion reactions of Kr^+ and Xe^+ with C_6F_5Br^- and C_6F_5CF_3^- have been spectroscopically studied in the He flowing afterglow. The branching ratios of recombination and neutralization reactions leading to RgX* excimers and excited Rg* atoms (Rg = Kr, Xe, X = Br, F), respectively, were determined to be 0.14:0.86 and 1.00:0.00 for the Kr^+/C_6F_5Br^- and Xe+/C_6F_5Br^- reactions and 0.00:1.00 for both the Kr^+/C_6F_5CF_3^- and Xe^+/C_6F_5CF_3^- reactions. It was concluded that electron affinities of target molecules and dissociation energies of C_6F_5X^- leading to X^- play a significant role in determining the branching ratio of ion–ion recombination and neutralization reactions.
Databáze: OpenAIRE