Hydrogen migration observed in fragmentation of the pyridine molecules in collisions with the H+, H2+, He+ and He++ cations

29th International Conference on Photonic, Electronic, and Atomic Collisions

Wasowicz, Tomasz J.^1

Department of Physics of Electronic Phenomena, Gdask University of Technology, Gdask

80-233, Poland^1

关键词: Energy ranges;    Hydrogen atoms;    Hydrogen migration;    NH groups;    Projectile velocity;    Pyridine molecules;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/3/032114/pdf
DOI  :  10.1088/1742-6596/635/3/032114

来源: IOP

【 摘 要 】

The hydrogen atom migration preceding fragmentation of the pyridine molecules by the H+, H2+, He+and He++collisions has been investigated in the 5-2000 eV energy range. The pyridine molecule structure is lacking of the NH group, thus formation of the NH radicals is an evidence of the H atom relocation prior to the cation-induced fragmentation. The NH(A3Π) fragmentation yields measured by detecting its A3Π→X3Σ-fluorescence show that it depends on the selected projectile and the projectile velocity.