The application of Rydberg atoms to the study of electron attachment at subthermal energies

[摘要] Low energy electron interactions with C$sb2$Cl$sb4$ and C$sb6$F$sb6$ molecules have been studied by using Rydberg atoms. It is observed that the electron attachment process occurs through various channels. Collisions of Rydberg atoms with C$sb2$Cl$sb4$ molecules result in the formation of Cl$sp-$ ions and C$sb2$Cl$sb4sp-$ ions. The data suggest the presence of the long lived C$sb2$Cl$sb4sp-$ ions and that the C$sb2$Cl$sb4sp-$ ions undergo rapid autodetachment forming an electron and a neutral C$sb2$Cl$sb4$ molecule. Similar reactions with the C$sb6$F$sb6$ molecules result in the formation of both long lived C$sb6$F$sb6sp-$ ions and short lived C$sb6$F$sb6sp-$ ions, that suffer rapid autodetachment forming an electron and a neutral molecule. The present data are compared with the previous data obtained by Swarm and Threshold Photoelectron Spectroscopy techniques.

[发布机构] Rice University

[效力级别] physics