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Negative-ion photoelectron spectroscopy of Cu clusters reacted with NO molecules

  • F. Misaizu
  • M. Furuhashi
  • A. Takada
  • Y. Yamakita
  • K. Ohno
Conference paper

Abstract

Negative ions of copper clusters reacted with nitric oxide molecules are studied by mass-selected photoelectron spectroscopy. The series of the reacted cluster ions, Cu n N Cu n NO, and Cu n NO 2 are observed in the mass spectrum. Photoelectron spectra are obtained at 3.49 eV photon energy for Cu n N (n = 2 and 3) and Ca n NO 2 (n = 1 and 2). The photoelectron spectrum of Cu2N contains a band structure analogous to that of Cu or Cu 2 . From the expansion gas pressure dependence of the band peak intensity in the spectrum, it is concluded that Cu2N has at least two isomers in the beam. One of the isomers is expected to have a structure in which the central ion is Cu or Cu 2 and the residual atom(s) are weakly bound to the ion. For Cu n NO (n = 1 − 3), we detected no electron signals with the detachment photon energy of 3.49 eV. The possible structure of CuNO is discussed in the light of the present results and also on the basis of the recent results of the study of CuO 2 by Wang and coworkers.

PACS

36.40.-c Atomic and molecular clusters 36.40.Cg Electronic and magnetic properties of clusters 36.40.Mr Spectroscopy and geometrical structure of clusters 36.40.Vz Optical properties of clusters 36.40.Wa Charged clusters 

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Copyright information

© Springer-Verlag Italia 1999

Authors and Affiliations

  • F. Misaizu
    • 1
  • M. Furuhashi
    • 1
  • A. Takada
    • 1
  • Y. Yamakita
    • 1
  • K. Ohno
    • 1
  1. 1.Graduate School of ScienceTohoku UniversityAramaki, Aoba-ku, SendaiJapan

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