Unusual temperature dependence of the dissociative electron attachment cross section of 2-thiouracil.
J Chem Phys
; 144(3): 034306, 2016 Jan 21.
Article
en En
| MEDLINE
| ID: mdl-26801033
ABSTRACT
At low energies (<3 eV), molecular dissociation is controlled by dissociative electron attachment for which the initial step, i.e., the formation of the transient negative ion, can be initiated by shape resonance or vibrational Feshbach resonance (VFR) mediated by the formation of a dipole bound anion. The temperature dependence for shape-resonances is well established; however, no experimental information is available yet on the second mechanism. Here, we show that the dissociation cross section for VFRs mediated by the formation of a dipole bound anion decreases as a function of a temperature. The change remains, however, relatively small in the temperature range of 370-440 K but it might be more pronounced at the extended temperature range.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
J Chem Phys
Año:
2016
Tipo del documento:
Article
País de afiliación:
Polonia