Andrew M. Ellis, Sheng-fu Yang. Role of Helium Droplets in Mass Spectra of Diatomics: Suppression of Dissociative Reactions[J]. Chinese Journal of Chemical Physics , 2015, 28(4): 489-492. doi: 10.1063/1674-0068/28/cjcp1504057
Citation: Andrew M. Ellis, Sheng-fu Yang. Role of Helium Droplets in Mass Spectra of Diatomics: Suppression of Dissociative Reactions[J]. Chinese Journal of Chemical Physics , 2015, 28(4): 489-492. doi: 10.1063/1674-0068/28/cjcp1504057

Role of Helium Droplets in Mass Spectra of Diatomics: Suppression of Dissociative Reactions

doi: 10.1063/1674-0068/28/cjcp1504057
  • Received Date: 2015-04-02
  • It is generally accepted that electron impact of doped helium nanodroplets initially produces a positively charged helium atom, which then ionizes the dopant if the two come into contact. In effect the He+ can initiate ion-molecule reactions. However, the effect of the surrounding helium on ion-molecule reactions remains ambiguous. To explore this, electron-induced chemistry has been investigated for the diatomic molecules O2, CO and N2. The helium is found to significantly suppress dissociative ion product channels.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Role of Helium Droplets in Mass Spectra of Diatomics: Suppression of Dissociative Reactions

doi: 10.1063/1674-0068/28/cjcp1504057

Abstract: It is generally accepted that electron impact of doped helium nanodroplets initially produces a positively charged helium atom, which then ionizes the dopant if the two come into contact. In effect the He+ can initiate ion-molecule reactions. However, the effect of the surrounding helium on ion-molecule reactions remains ambiguous. To explore this, electron-induced chemistry has been investigated for the diatomic molecules O2, CO and N2. The helium is found to significantly suppress dissociative ion product channels.

Andrew M. Ellis, Sheng-fu Yang. Role of Helium Droplets in Mass Spectra of Diatomics: Suppression of Dissociative Reactions[J]. Chinese Journal of Chemical Physics , 2015, 28(4): 489-492. doi: 10.1063/1674-0068/28/cjcp1504057
Citation: Andrew M. Ellis, Sheng-fu Yang. Role of Helium Droplets in Mass Spectra of Diatomics: Suppression of Dissociative Reactions[J]. Chinese Journal of Chemical Physics , 2015, 28(4): 489-492. doi: 10.1063/1674-0068/28/cjcp1504057

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