Photoelectron spectroscopy study of MCn- (M = Sc, Y, and La, 5≤n≤20)

Masamichi Kohno, Shinzo Suzuki, Haruo Shiromaru, Kaoru Kobayashi, Shigeru Nagase, Yohji Achiba, Hardy Kietzmann, Barbara Kessler, Gerd Gantefoer, Wolfgang Eberhardt

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Abstract

Photoelectron spectra of metal-attached carbon cluster anions MCn- (M = Sc, Y, and La, 5≤n≤20) generated in a laser-vaporization ion source were measured using a magnetic bottle time-of-flight photoelectron spectrometer with 6.4 eV photon energy. The vertical detachment energy (vDE) of each species was estimated from the spectra and compared with the vDE of the linear and monocyclic ring forms of Cn. It was found that PES features of MCn- (5≤n≤20, n = odd) could be understood under the assumption that the π electronic structure of MCn- is similar to those of the linear carbon chains. However, the PES features of MCn- (12≤n≤20, n = even) indicate the presence of a π electronic structure similar to the isomers having ring form. Further possible electronic and molecular structures are presented and discussed for MCn- of odd n and even n, respectively.

Original languageEnglish
Pages (from-to)163-173
Number of pages11
JournalJournal of Electron Spectroscopy and Related Phenomena
Volume112
Issue number1-3
DOIs
Publication statusPublished - Nov 2000
Externally publishedYes

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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    Kohno, M., Suzuki, S., Shiromaru, H., Kobayashi, K., Nagase, S., Achiba, Y., Kietzmann, H., Kessler, B., Gantefoer, G., & Eberhardt, W. (2000). Photoelectron spectroscopy study of MCn- (M = Sc, Y, and La, 5≤n≤20). Journal of Electron Spectroscopy and Related Phenomena, 112(1-3), 163-173. https://doi.org/10.1016/S0368-2048(00)00210-3