Electron-Stimulated Desorption of H-from Condensed-Phase Deoxyribose Analogues:  Dissociative Electron Attachment versus Resonance Decay into Dipolar Dissociation

2000 ◽  
Vol 104 (19) ◽  
pp. 4711-4716 ◽  
Author(s):  
D. Antic ◽  
L. Parenteau ◽  
L. Sanche
Keyword(s):  
Condensed Phase ◽  
Electron Attachment ◽  
Dissociative Electron Attachment ◽  
Resonance Decay ◽  
Electron Stimulated Desorption

Dissociative Electron Attachment to Gas- and Condensed-Phase CF3Cl:  Anion Desorption and Trapping

1998 ◽  
Vol 102 (5) ◽  
pp. 824-830 ◽  
Author(s):  
Fritz Weik ◽  
Eugen Illenberger ◽  
Kannadaguli Nagesha ◽  
Léon Sanche
Keyword(s):  
Condensed Phase ◽  
Electron Attachment ◽  
Dissociative Electron Attachment

Dissociative electron attachment in H− electron stimulated desorption from hydrogenated diamond surfaces

2001 ◽  
Vol 482-485 ◽  
pp. 324-329 ◽  
Author(s):  
R Azria ◽  
Y Le Coat ◽  
M Hadj Hamou ◽  
M.N Hedhili ◽  
S Ustaze ◽  
...  
Keyword(s):  
Electron Attachment ◽  
Dissociative Electron Attachment ◽  
Diamond Surfaces ◽  
Electron Stimulated Desorption

Bond and site selectivity in dissociative electron attachment to gas phase and condensed phase ethanol and trifluoroethanol

2007 ◽  
Vol 9 (26) ◽  
pp. 3424 ◽  
Author(s):  
Mario Orzol ◽  
Isabel Martin ◽  
Jaroslav Kocisek ◽  
Iwona Dabkowska ◽  
Judith Langer ◽  
...  
Keyword(s):  
Gas Phase ◽  
Condensed Phase ◽  
Electron Attachment ◽  
Dissociative Electron Attachment ◽  
Site Selectivity

scholarly journals Direct observation of long-lived cyanide anions in superexcited states

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Xiao-Fei Gao ◽  
Jing-Chen Xie ◽  
Hao Li ◽  
Xin Meng ◽  
Yong Wu ◽  
...  
Keyword(s):  
Direct Observation ◽  
Electron Attachment ◽  
Planetary Atmosphere ◽  
Interstellar Space ◽  
Dissociative Electron Attachment ◽  
Circumstellar Envelopes ◽  
Vibrational States ◽  
Cyanide Anion ◽  
Exceptional Stability ◽  
Electronic Ground

AbstractThe cyanide anion (CN−) has been identified in cometary coma, interstellar medium, planetary atmosphere and circumstellar envelopes, but its origin and abundance are still disputed. An isolated CN− is stabilized in the vibrational states up to ν = 17 of the electronic ground-state 1Σ+, but it is not thought to survive in the electronic or vibrational states above the electron autodetachment threshold, namely, in superexcited states. Here we report the direct observation of long-lived CN− yields of the dissociative electron attachment to cyanogen bromide (BrCN), and confirm that some of the CN− yields are distributed in the superexcited vibrational states ν ≥ 18 (1Σ+) or the superexcited electronic states 3Σ+ and 3Π. The triplet state can be accessed directly in the impulsive dissociation of BrCN− or by an intersystem transition from the superexcited vibrational states of CN−. The exceptional stability of CN− in the superexcited states profoundly influences its abundance and is potentially related to the production of other compounds in interstellar space.

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