Low-energy electron impact investigation of the triplet states of cyclopentanone and cyclohexanone

Kenji Furuya, Etsuji Yamamoto, Youichi Jinbou, Teiichiro Ogawa

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10 Citations (Scopus)


The angle-resolved electron energy-loss spectra of cyclopentanone and cyclohexanone have been measured at an electron energy of 5 eV above the threshold and at several scattering angles of 0-90 degrees. Five triplet bands together with four singlet bands have been newly observed. INDO/S CI calculations have also been performed for the spectral assignments. The singlet bands have been assigned to S1(n, π*) and 1n → 3l(l = s, p, and d) transitions, and the triplet bands have been assigned to T1(n, π*), T2(π, π*), and 3n → 3l transitions from the comparison with the VUV absorption spectra of the cyclic ketones and the electron energy-loss spectra of acetone, which were reported earlier, and the calculated transition energies.

Original languageEnglish
Pages (from-to)59-64
Number of pages6
JournalJournal of Electron Spectroscopy and Related Phenomena
Issue number1
Publication statusPublished - May 31 1995

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Radiation
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Spectroscopy
  • Physical and Theoretical Chemistry


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