Precise determination of differential electron scattering cross sections. II. CH4, CO2, CF4

DOI PDF 被引用文献5件
  • M. Fink
    Physics Department and Electronics Research Center, The University of Texas, Austin, Texas 78712
  • C. W. Schmiedekamp
    Physics Department and Electronics Research Center, The University of Texas, Austin, Texas 78712
  • D. Gregory
    Physics Department and Electronics Research Center, The University of Texas, Austin, Texas 78712

書誌事項

公開日
1979-12-15
DOI
  • 10.1063/1.438331
公開者
AIP Publishing

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説明

<jats:p>Precise total (elastic plus inelastic) differential cross sections have been measured for CH4, CO2, and CF4 with 50.4 keV incident electrons. The accuracies are 0.1% in the intensities and ±2 arc sec in the scattering angles. The structure parameters have been evaluated. The bond distances agree well with previous results, although the mean amplitudes of vibration are in general larger than those calculated from harmonic force fields. The difference curves comparing the experimental cross sections to IAM (independent atom model) predictions are discussed utilizing CI atomic potentials in the IAM. The ’’binding’’ energies have been determined and are found to be consistently several electron volts above those evaluated via the heat of combustion.</jats:p>

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