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Citation: Jin An-Ding, Zhu Xiao-Lei. Gas Electron Diffraction and Charge Redistribution in SF₆ Molecule[J]. Acta Physico-Chimica Sinica, ;1995, 11(07): 663-666. doi: 10.3866/PKU.WHXB19950720 shu

Gas Electron Diffraction and Charge Redistribution in SF₆ Molecule

1.
Department of Chemistry,Nanjing Normal University,Nanjing 210097

Received Date: 13 June 1994
Available Online: 15 July 1995

Independent atom model (IAM) is generaly used in gaseous electron diffraction (GED) experiment. This means that the effect of the charge redistribution in a molecule is neglected in general case in GED data analysis and the information of the effect could be taken from the residual intensity. In this work, various methods were suggested to calculate the elastic scattering factors for S, F atoms in SF6 molecule (modified IAM or MIAM) and the residual intensity of 40keV electrons scattered by the same molecule. Bonham-type parameter method was selected to achieve od agreement with experimental results and the charge redistribution was determined according to these parameters. Further comparison was made between different methods and their results.
- Gas electron diffraction(GED),
- SF₆,
- Charge redistribution(in molecules)
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Gas Electron Diffraction and Charge Redistribution in SF₆ Molecule