物理化学学报 >> 1995, Vol. 11 >> Issue (10): 870-872.doi: 10.3866/PKU.WHXB19951002

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Si(CH3)2Cl2分子的电离电势和化学键能的测定

盛六四, 齐飞, 张允武, 陈文武, 王朝晖, 丁传凡, 孔繁敖   

  1. 中国科学技术大学国家同步辐射实验室,合肥 230026|中国科学院化学研究所分子反应动力学国家重点实验室,bejing 100080
  • 收稿日期:1995-06-30 修回日期:1995-07-25 发布日期:1995-10-15
  • 通讯作者: 丁传凡

The Measurement of the Ionization Potential and the Bond Energy Si(CH3)2Cl2

Sheng Liu-Si, QI Fei, Zhang Yun-Wu, Chen Wen-Wu, Wang Zhao-Hui, Ding Chuan-Fan, Kong Fan-Ao   

  1. National Laboratory of Synchrotron Radiation,University of Science and Technology of China,Hefei 230026|The State Key Laboratory of Molecular Reaction Dynamics,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100080
  • Received:1995-06-30 Revised:1995-07-25 Published:1995-10-15
  • Contact: Ding Chuan-Fan

关键词: Si(CH3)2Cl2, 同步辐射, 光电离, 电离电势, 化学键键能

Abstract:

The vacuum ultraviolet photoionization spectrum of Si(CH3)2Cl2 has been obtained with synchrotron radiation source. The adiabatic ionization potential of Si(CH3)2Cl2 is 10.62±0.03eV (0.37eV lower than reported by PES), and the appearance potentials for Si(CH3)Cl2, Si(CH3)2Cl+, SiCH3+ and SiCl+ are 11.25±0.03eV,12.69±0.04eV, 15. 1±0.1eV and 21.16eV±0.1eV respectively. From these results, we estimate D(Si(CH3)Cl2+-CH3)=0.63\±0.03eV and D(Si(CH3)2Cl+-Cl))=2.07±0.04eV.

Key words: Si(CH3)2Cl2, Syrchrotron radiation, Photoionization, Ionization potential, Chemical bond energy