Visible photodissociation study of NO dimer cation using ion imaging technique combined with theoretical calculations

Yuri Ito, Yuji Nakashima, Kenichi Okutsu, Motoyoshi Nakano, Keijiro Ohshimo, Fuminori Misaizu

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Visible photodissociation of (NO)2+ at 532–692 nm was investigated by ion imaging experiments and theoretical calculations. From images of photofragment NO+, we obtained the translational energy, which increased with excitation energy. Anisotropy parameter increased from β = 0.7 at 692 nm to 1.4 at 532 nm. These results qualitatively agreed with theoretical calculations, in which (NO)2+ was predicted to be directly dissociated after the C∼←X∼ transition. However, a simple description with an impulsive dissociation model cannot reproduce photon energy dependence of the photofragment energy and angular distributions, implying the importance of multidimensional analyses of potential energy surfaces.

Original languageEnglish
Article number137022
JournalChemical Physics Letters
Volume739
DOIs
Publication statusPublished - 2020 Jan

Keywords

  • Ion imaging
  • Molecular cluster
  • Photodissociation
  • Potential energy curves

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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