Acta Phys. -Chim. Sin. ›› 1995, Vol. 11 ›› Issue (10): 870-872.doi: 10.3866/PKU.WHXB19951002

• COMMUNICATION • Previous Articles     Next Articles

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


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