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Structural Origin of the Formation of Odd-Numbered Carbon Clusters from Fullerene Derivatives

         

摘要

We report the mass spectrometric investigation on fullerene derivatives C60CH2, C60RH, C60R2(R= C6H5 CO-)and C60On under the 308nm laser ablation. In the negative ion mass spectra of C60CH2 C60R2, and C60On,odd-numbered clusters C57-,C55-, C53-, C51- are observed clearly in addition to the even-numbered fullerene fragment ions, while for the monoadduct C60RH, odd-numbered species can not be detected. In the positive ion channel, the fragmentation patterns of the three derivatives are similar. A mechanism related to the structural characteristics of the derivatives is supposed for the odd-numbered duster formation. The 3-membered ring formed on the C60 cage is thought of to play a vital role for the formation of odd-numbered carbon clusters.

著录项

  • 来源
    《中国物理快报:英文版》 |2000年第6期|419-421|共3页
  • 作者单位

    State Key Joint Laboratory for Materials Modification by Laser, Ion and Electron Beams, Department of Physics,Fudan University, Shanghai 200433;

    State Key Joint Laboratory for Materials Modification by Laser, Ion and Electron Beams, Department of Physics,Fudan University, Shanghai 200433;

    State Key Joint Laboratory for Materials Modification by Laser, Ion and Electron Beams, Department of Physics,Fudan University, Shanghai 200433;

    State Key Joint Laboratory for Materials Modification by Laser, Ion and Electron Beams, Department of Physics,Fudan University, Shanghai 200433;

    State Key Joint Laboratory for Materials Modification by Laser, Ion and Electron Beams, Department of Physics,Fudan University, Shanghai 200433;

    State Key Joint Laboratory for Materials Modification by Laser, Ion and Electron Beams, Department of Physics,Fudan University, Shanghai 200433;

    Department of Chemistry,Fudan University, Shanghai 200433;

    Department of Chemistry,Fudan University, Shanghai 200433;

    Department of Chemistry,Fudan University, Shanghai 200433;

    Department of Environmental Science and Engineering,Fudan University, Shanghai 200433;

    Department of Environmental Science and Engineering,Fudan University, Shanghai 200433;

  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类 物理学;
  • 关键词

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