应用化学 ›› 1993, Vol. 0 ›› Issue (3): 60-62.

• 研究简报 • 上一篇    下一篇

激光法产生球烯负离子

黄荣彬1, 刘朝阳1, 郑兰荪1, 高振2, 孔繁敖2   

  1. 1. 厦门大学固体表面物理化学国家重点实验室 361005 厦门;
    2. 中国科学院化学研究所 北京
  • 收稿日期:1992-07-07 修回日期:1992-11-26 出版日期:1993-06-10 发布日期:1993-06-10
  • 基金资助:
    固体表面物理化学国家重点实验室开放课题项目

GENERATION OF FULLERENE ANIONS BY LASER ABLATION

Huang Rongbin1, Liu Zhaoyang1, Zheng Lansun1, Gao Zhen2, Kong Fanao2   

  1. Stale Key Laboratory of Physical Chemistry of Solid Surface, Xiamen University, 361005 Xiamen
  • Received:1992-07-07 Revised:1992-11-26 Published:1993-06-10 Online:1993-06-10

摘要: C60及其他具有封闭结构的球烯(Fullerene)的产生与研究是当今化学界的热门课题。我们在自制的仪器上,以脉冲激光束在高真空中溅射单质碳样品,产生球烯的正负离子。最近又在相同条件下记录了煤、稠环芳香烃等10余种有机物的负离子质谱,发现其中许多物质均能产生球烯负离子,且质谱特征十分相似,与以往观察的正离子质谱有明显不同。实验结果揭示了球烯负离子的激光产生与样品组成和结构的关联。

关键词: 球烯负离子, 形成激光溅射, 质谱

Abstract: Coal, pitch, polycyclic aromatic hydrocarbons and other organic compounds:anthraquinone,triphenylphosphine, carbazole, purine, diphenylguanidine, phenanthroline, triazole were ablated by pulsed laser beam in high vacuum, and their products were monitored with negative ion mass spectrometry. The results showed that many organic species can generate fullerene anions, even though they consist of other non-carbon atoms such as H, O, N, P, but with at least one six-member aromatic ring. The Structures and compositions of the organic species showed a certain effect on the generation of the fullerene.

Key words: fullerene anion, formation laser ablation, mass spectrometry