< Terug naar vorige pagina
Publicatie
Vibrational Autodetachment from Anionic Nitroalkane Chains: From Molecular Signatures to Thermionic Emission
Tijdschriftbijdrage - Tijdschriftartikel
We report the kinetic energy distributions in electron autodetachment from nitroethane, 1-nitropropane, and 1-nitrobutane anions upon laser excitation of CH stretching modes measured using velocity map electron imaging. In striking contrast to the case of nitromethane, the kinetic energy distributions show almost no distinct vibrational features, and they can be described by thermionic emission, relating the shape of the distributions to the electron capture cross section of the neutral molecule. The data suggest that a classical description is warranted above ca. 20 meV electron kinetic energy. At lower energies, quantum effects suppress the attachment cross section.
Tijdschrift: Journal of Physical Chemistry A
ISSN: 1089-5639
Issue: 40
Volume: 123
Pagina's: 8562 - 8570
Jaar van publicatie:2019