Do small fullerenes exist only on the computer? Experimental results on C=/−20 and C+/−24

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Abstract

Experimental results on the structure of carbon cluster anions and cations with 20 and 24 atoms are presented. Recent quantum chemical calculations predict either cage or graphitic structures to be lowest in energy for C20 and C24. However experimentally we find C+20 and C−20 are dominated by monocyclic ring structures, with C−20 exhibiting minor amounts of planar bicyclic structures and a linear structure. For C+24 and C−24 both monocyclic rings and planar bicycle rings are observed. No fullerene or “graphitic” structures are observed for these clusters. A number of possible bicyclic structures for C24 are discussed.

References (21)

  • K. Raghavachari et al.

    J. Chem. Phys.

    (1987)
  • V. Parasuk et al.

    Chem. Phys. Letters

    (1991)
  • C. Liang et al.

    J. Chem. Phys.

    (1990)
  • J.M.L. Martin et al.

    Chem. Phys. Letters

    (1991)
  • E.A. Mason et al.
    (1988)
  • G. von Helden, M.T. Hsu, P.R. Kemper and M.T. Bowers, J. Am. Chem. Soc., submitted for...
  • W. Weltner et al.

    Chem. Rev.

    (1989)
  • M.D. Cox et al.

    J. Chem. Phys.

    (1988)
  • P.P. Radi et al.

    J. Chem. Phys.

    (1988)
  • S.W. McElvany et al.

    J. Chem. Phys.

    (1986)
    S.W. McElvany et al.

    J. Chem. Phys.

    (1987)
    S.W. McElvany

    J. Chem. Phys.

    (1988)
    S.W. McElvany

    Intern. J. Mass Spectrom. Ion Processes

    (1990)
    D.C. Parent et al.

    J. Am. Chem. Soc.

    (1989)
    P.A. Hintz et al.

    Chem. Phys. Letters

    (1991)
There are more references available in the full text version of this article.

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