Dissociative electron attachment to NO probed by velocity map imaging

文献情報

出版日 2010-12-06

DOI 10.1039/C0CP01067G

インパクトファクター 3.676

著者

Dhananjay Nandi, Vaibhav S. Prabhudesai, B. M. Nestmann, E. Krishnakumar

原文を見る

要旨

An experimental and theoretical investigation of the dissociative electron attachment process in nitric oxide is presented. Measurements using the recently developed ion momentum imaging conclusively show the presence of two resonance features in the O−channel. These are found to dissociate to give N atoms in the 2D and 2P excited states respectively, thus settling the controversies regarding the possible dissociation limits of this process. Though the angular distribution of O− shows the resonances contributing to these dissociations are of Π symmetry and a mixture of Π and Σ or Δ symmetry respectively, our calculations using R-matrix theory show no direct electron attachment channel leading to O− through these resonances, as all the allowed resonances below 10 eV decay to either O + N− or O− + N(4S) channels. We propose that indirect mechanisms through curve crossings lead to the experimentally observed results.

掲載誌

Physical Chemistry Chemical Physics

CiteScore: 5.5

自己引用率: 10.3%

年間論文数: 3036

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