Absolute cross section measurements for the scattering of low- and intermediate-energy electrons from PF3 . II. Inelastic scattering of vibrational and electronic excitations

The Journal of Chemical Physics
N HishiyamaH Tanaka

Abstract

As a sequel paper to our study of the elastic scattering for electron collisions with phosphorus trifluoride, PF3 molecules, we report absolute inelastic differential and integral cross sections (DCS and ICS) of vibrational excitations for the compound fundamental vibrational modes v13 (v1 + v3), v24 (v2 + v4), and their sum in the impact energy range of 2.0-10 eV and over a scattering angle range of 20°-130°. The measured angular distributions of scattered electron intensities for the present inelastic scattering are normalized to the elastic peak intensity corresponding to the DCSs of He. These vibrational excitation measurements demonstrate the presence of resonances around 2 eV and also around 6-10 eV. In addition, a generalized oscillator strength analysis is applied to derive oscillator strength f0-values and (unscaled Born) ICSs from the corresponding DCSs measured for the low-lying optically allowed 8a1-1 → 7e (σ*) excitation band, which is assigned as the Jahn-Teller splitting and 8a1-1 → 4s Rydberg transition at impact energies of 100, 200, and 300 eV, over a scattering angle range of 1.0°-15°. The f0-values obtained in the present study are compared with the results of previous photoabsorption and pseudo-optical meas...Continue Reading

References

Nov 3, 2001·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·H J KimI M Kim Im
Jul 21, 2004·The Journal of Chemical Physics·Czesław SzmytkowskiGrzegorz Kasperski
Feb 23, 2007·The Journal of Chemical Physics·Yong-Ki Kim

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Citations

May 6, 2021·Physical Chemistry Chemical Physics : PCCP·Lilian K Ellis-GibbingsStephen D Price

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