Dissociative electron attachment to polyatomic molecules: Ion kinetic energy measurements

2010 ◽  
Vol 289 (1) ◽  
pp. 39-46 ◽  
Author(s):  
Dhananjay Nandi ◽  
E. Krishnakumar
Keyword(s):  
Kinetic Energy ◽  
Electron Attachment ◽  
Polyatomic Molecules ◽  
Dissociative Electron Attachment ◽  
Ion Kinetic Energy

Dissociative Electron Attachment Processes in SO2 and NO2

1971 ◽  
Vol 49 (9) ◽  
pp. 1571-1574 ◽  
Author(s):  
D. A. Rallis ◽  
J. M. Goodings
Keyword(s):  
Kinetic Energy ◽  
Ground State ◽  
Electronic Excitation ◽  
Electron Attachment ◽  
Negative Ion ◽  
Dissociation Limit ◽  
Dissociative Electron Attachment ◽  
Zero Kinetic Energy ◽  
Trapped Electron ◽  
Second Peak

A trapped electron apparatus has been used to identify the processes involved in negative ion formation for the triatomic oxides SO2 and NO2. Two O− peaks are observed in SO2 with onset values at 4.2 ± 0.15 and 6.3 ± 0.2 eV, and peak values at 5.0 ± 0.15 and 7.4 ± 0.15 eV, respectively. From kinetic energy analysis of the O− ions, both peaks are found to have the same dissociation limit involving SO in its ground state. For NO2, two dissociative electron attachment peaks are observed with onset values at 1.6 ± 0.2 and 7.3 ± 0.3 eV, and peak values at 3.0 ± 0.2 and 8.1 ± 0.2 eV, respectively. The first broad peak is explained by overlapping contributions from two processes having the same dissociation limit involving ground state NO; they differ only in the amount of kinetic energy possessed by the fragments. The second peak appears to involve electronic excitation of the neutral fragment NO* with zero kinetic energy at onset.

scholarly journals Dissociative electron attachment to polyatomic molecules

2020 ◽  
Vol 1412 ◽  
pp. 052010
Author(s):  
Xu-Dong Wang ◽  
Xiao-Fei Gao ◽  
Hao Li ◽  
Bin Wu ◽  
Shan X Tian
Keyword(s):  
Electron Attachment ◽  
Polyatomic Molecules ◽  
Dissociative Electron Attachment
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