Negative ion formation through dissociative electron attachment to the group IV tetrabromides: Carbon tetrabromide, silicon tetrabromide and germanium tetrabromide

2014 ◽  
Vol 365-366 ◽  
pp. 275-280 ◽  
Author(s):  
F.H. Ómarsson ◽  
B. Reynisson ◽  
M.J. Brunger ◽  
M. Hoshino ◽  
H. Tanaka ◽  
...  
Keyword(s):  
Electron Attachment ◽  
Group Iv ◽  
Negative Ion ◽  
Dissociative Electron Attachment ◽  
Carbon Tetrabromide ◽  
Ion Formation

Negative ion formation in dissociative electron attachment to selected halogen derivatives of propane

2008 ◽  
Vol 277 (1-3) ◽  
pp. 103-106 ◽  
Author(s):  
W. Barszczewska ◽  
J. Kočíšek ◽  
J. Skalný ◽  
V. Matejčík ◽  
Š. Matejčík
Keyword(s):  
Electron Attachment ◽  
Negative Ion ◽  
Dissociative Electron Attachment ◽  
Ion Formation ◽  
Derivatives Of

scholarly journals Negative ion formation and fragmentation upon dissociative electron attachment to the nicotinamide molecule

RSC Advances ◽  
2021 ◽  
Vol 11 (51) ◽  
pp. 32425-32434
Author(s):  
Patrick Ziegler ◽  
Andrzej Pelc ◽  
Eugene Arthur-Baidoo ◽  
Joao Ameixa ◽  
Milan Ončák ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Pyridine Ring ◽  
Electron Attachment ◽  
Negative Ion ◽  
Dissociative Electron Attachment ◽  
Biologically Relevant ◽  
Ion Formation

In this study we show that the biologically relevant nicotinamide molecule dissociates into a variety of fragment anions upon electron attachment. The pyridine ring remains intact in all the dissociation reactions observed via mass spectrometry.

Negative ion formation through dissociative electron attachment to GeH4: Comparative studies with CH4 and SiH4

2011 ◽  
Vol 306 (1) ◽  
pp. 51-56 ◽  
Author(s):  
M. Hoshino ◽  
Š. Matejčík ◽  
Y. Nunes ◽  
F. Ferreira da Silva ◽  
P. Limão-Vieira ◽  
...  
Keyword(s):  
Comparative Studies ◽  
Electron Attachment ◽  
Negative Ion ◽  
Dissociative Electron Attachment ◽  
Ion Formation

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.

Dissociative electron attachment to the complexation ligands hexafluoroacetylacetone, trifluoroacetylacetone and acetylacetone; a comparative experimental and theoretical study

RSC Advances ◽  
2014 ◽  
Vol 4 (63) ◽  
pp. 33222-33235 ◽  
Author(s):  
Benedikt Ómarsson ◽  
Sarah Engmann ◽  
Oddur Ingólfsson
Keyword(s):  
Theoretical Study ◽  
Electron Attachment ◽  
Negative Ion ◽  
Dissociative Electron Attachment ◽  
Dissociation Dynamics

Influence of fluorination on the negative ion resonances and dissociation dynamics in electron attachment to acetylacetone, trifluoroacetylacetone and hexafluoroacetylacetone are explored through calculations and experiments.

Sign in / Sign up

Export Citation Format

Share Document