物理化学学报 >> 1996, Vol. 12 >> Issue (10): 926-928.doi: 10.3866/PKU.WHXB19961013

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幻数团簇离子Mn+5

马晨生,李海洋,白吉玲,何国钟   

  1. 中国科学院大连化学物理研究所分子反应动力学国家重点实验室，大连 116023
  • 收稿日期:1996-03-18 修回日期:1996-05-10 发布日期:1996-10-15
  • 通讯作者: 马晨生

Magic Number Cluster Ion Mn+5

Ma Chen-Sheng,Li Hai-Yang,Bai Ji-Ling,He Guo-Zhong   

  1. State Key Laboraotry of Molecular Reaction Dynamics,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,China
  • Received:1996-03-18 Revised:1996-05-10 Published:1996-10-15
  • Contact: Ma Chen-Sheng

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关键词: 团簇, 激光烧蚀, 幻数, Mn+5

Abstract:

Magic number cluster ion Mn5+ and abundant Mn/O cluster ions havc been formed by 532nm laser ablation of MnCO3 solid sample with time-of-flight mass spectroscopy detection. The experimental results show that Mn5+ was formed in the cooler dilute tail region of the plume produced by laser ablation, while Mn/O cluster ions were mainly formed in the hotter dense preceding portion of the plume, they all were produced by postablation cluster growth in the ablation plume. Pentagonal with D(5h) symmetry is the possible structure of Mn5+, which is supported by our ab initio calculation.

Key words: Cluster, Laser ablation, Magic number, Mn+5