Missing Metallofullerenes: La@C<sub>72</sub>, La@C<sub>74</sub>, La@C<sub>80</sub>

DOI

Bibliographic Information

Other Title
  • 幻の金属内包フラーレン: La@C<sub>72</sub>, La@C<sub>74</sub>, La@C<sub>80</sub>

Abstract

Endohedral metallofullerenes have attracted special interest since they could lead to new spherical molecules with unique structure and properties that are unexpected for empty fullerenes. In 1991, Smalley and co-workers reported that La@C60, La@C74, and La@C82 were produced especially abundantly in the soot, but only La@C82 was extracted with toluene. Since then, the chemistry of soluble endohedral metallofullerenes has been started by centering on that of La@C82, and up to now many soluble endohedral metallofullerenes have been separated and characterized. However, insoluble endohedral metallofullerenes such as La@C60, La@C72, and La@C74, have not yet been isolated although they are regularly observed in the raw soot by mass spectrometry. We herein report the isolation of La@C72, La@C74, and La@C80 as an endohedral metallofullerene derivative, La@C72(C6H3Cl2), La@C74(C6H3Cl2), and La@C80(C6H3Cl2), respectively. The structural determination has been performed by spectroscopic and finally X-ray crystallographic analysis, and these properties are discussed on the basis of the theoretical study.

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Details 詳細情報について

  • CRID
    1390282680532547712
  • NII Article ID
    130004645440
  • DOI
    10.11494/kisoyuki.2008.0.313.0
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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