Collisions of Monoenergetic Electrons with NO2: Possible Lower Limits to Electron Affinities of O2 and NO

1 March 1969

journal article
research article
Published by AIP Publishing in The Journal of Chemical Physics

Vol. 50 (5) , 2176-2180
https://doi.org/10.1063/1.1671347

Abstract

The yields of O⁻, NO⁻, and O₂⁻ ions produced by dissociative attachment of electrons to NO₂ have been studied as a function of the electron energy from 0 to 6 eV. A modulated retarding‐potential‐difference technique permitted electron‐energy resolution of approximately 0.1 eV. The measured appearance potentials for NO⁻ and O₂⁻ were found to be consistent with an electron affinity of ≥0.65 eV for NO and ≥1.1 eV for O₂. These lower limit measurements to the electron affinities of O₂ and NO are discussed in relation to previous studies of electron attachment to these molecules.

Keywords

This publication has 40 references indexed in Scilit:

Measurement of the Cross Section for the Reactions $H^{-}$ + $H_{2}$ O → ${OH}^{-}$ + $H_{2}$ and $D^{-}$ + $D_{2}$ O → ${OD}^{-}$ + $D_{2}$ at Incident Ion Energies near 2 eV
Physical Review Letters, 1968
Survival Probability in Dissociative Attachment
Physical Review B, 1967
Negative-Ion Formation in $H_{2}$ O and $D_{2}$ O
Physical Review B, 1967
Total Cross Sections for Ionization and Attachment in Gases by Electron Impact. II. Negative-Ion Formation
The Journal of Chemical Physics, 1965
Potential energy curves for N2, NO, O2 and corresponding ions
Journal of Quantitative Spectroscopy and Radiative Transfer, 1965
Electron affinities of the oxides of nitrogen
Discussions of the Faraday Society, 1964
Negative Ion Formation in Ozone
The Journal of Chemical Physics, 1961
Electron Affinity of $O_{2}$
Physical Review B, 1959
Photodetachment of $O_{2}^{-}$
Physical Review B, 1958
The negative ions of atomic and molecular oxygen
Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1943