Structures of cobalt oxide cluster cations studied by ion mobility mass spectrometry

Kosuke Ota, Kiichirou Koyasu, Keijiro Ohshimo, Fuminori Misaizu

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)


Structures of cobalt oxide cluster cations have been investigated by ion mobility mass spectrometry. When the ions were injected into a drift cell with 250 eV kinetic energy, (CoO)+nd Co+were observed. Collision cross sections were experimentally determined for (CoO)+and Co+(n = 5-7). Orientation-averaged collision cross sections were calculated for optimized structures of these ions obtained in quantum chemical calculations. By comparison between experimental and theoretical cross sections, (CoO)+ions are found to have monocyclic-ring structures. By contrast, (CoO)+have compact tower structures. Therefore, structural transition from the ring to compact structures occurs at (CoO)+

Original languageEnglish
Pages (from-to)63-67
Number of pages5
JournalChemical Physics Letters
Publication statusPublished - 2013 Nov 19

ASJC Scopus subject areas

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


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