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Low energy differential elastic electron scattering from acetonitrile (CH3CN)
1Department of Physics, California State University, Fullerton, California 92831, USA.
The Journal of Chemical Physics
|October 4, 2018
Summary
This study measured electron scattering from acetonitrile (CH3CN), revealing a π* resonance near 3 eV. These findings aid in understanding molecular interactions and resonance phenomena in electron-molecule collisions.
Area of Science:
- Chemical Physics
- Atomic and Molecular Physics
- Quantum Mechanics
Background:
- Understanding electron scattering is crucial for molecular physics.
- Acetonitrile (CH3CN) is a significant molecule in various chemical processes.
- Resonances in electron scattering provide insights into molecular electronic structures.
Purpose of the Study:
- To measure elastic differential cross sections for electron scattering from acetonitrile.
- To investigate the presence and characteristics of resonances in electron-acetonitrile interactions.
- To compare experimental data with theoretical models.
Main Methods:
- Utilized a crossed electron-molecular beam experiment.
- Employed the relative flow method for measurements.
- Covered incident electron energy from 0.7 eV to 30 eV and scattering angles from 10° to 130°.
Main Results:
- Determined elastic differential cross sections for electron scattering from acetonitrile.
- Calculated elastic integral and momentum-transfer cross sections.
- Identified a π* resonance around 3 eV.
Conclusions:
- The study provides valuable experimental data for electron scattering from acetonitrile.
- The observed π* resonance offers insights into the electronic structure of acetonitrile.
- Comparison with R-matrix and Schwinger multichannel methods validates theoretical approaches.
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