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The European Physical Journal D

, Volume 43, Issue 1–3, pp 65–68 | Cite as

Electron detachment of super-excited porphyrin anions in an electrostatic ion storage ring

  • M. Goto
  • Y. Yasuda
  • S. Jinno
  • T. Takao
  • K. Hanada
  • H. Tanuma
  • T. Azuma
  • K.-I. Sugiura
  • H. Shiromaru
  • Y. Achiba
Structure and Thermodynamics of Free Clusters

Abstract.

To study the photoexcitation and subsequent reactions of large molecular ions, anions of 5,10,15,20-tetraphenyl-21H,23H-porphine, which is a typical metal-free porphyrin, were produced and stored in an electrostatic ion storage ring at the Tokyo Metropolitan University. The circulating ions were merged using a pulsed laser, resulting in the production of super-excited anions, which eventually yielded neutral species. The decay profile deviated considerably from t-1 behavior, depending on the laser fluence and excitation wavelength.

PACS.

33.80.Eh Autoionization, photoionization, and photodetachment 34.50.Gb Electronic excitation and ionization of molecules; intermediate molecular states 

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Copyright information

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2007

Authors and Affiliations

  • M. Goto
    • 1
  • Y. Yasuda
    • 1
  • S. Jinno
    • 1
  • T. Takao
    • 1
  • K. Hanada
    • 1
  • H. Tanuma
    • 1
  • T. Azuma
    • 1
  • K.-I. Sugiura
    • 1
  • H. Shiromaru
    • 1
  • Y. Achiba
    • 1
  1. 1.Graduate School of Science, Tokyo Metropolitan UniversityHachiojiJapan

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