Electron impact ionisation cross sections derived from total inelastic cross section for CF3X and CF2X2 (X = H, Cl, Br and I) molecules
| Autor: | Pankaj Verma, Rahla Naghma, Bobby Antony |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Chemistry
Scattering Biophysics 010402 general chemistry Condensed Matter Physics 01 natural sciences Optical potential 0104 chemical sciences Formalism (philosophy of mathematics) Ionization 0103 physical sciences Molecule Physical and Theoretical Chemistry Atomic physics 010306 general physics Molecular Biology Electron scattering Electron ionization |
| Zdroj: | Molecular Physics. 114:1778-1786 |
| ISSN: | 1362-3028 0026-8976 |
| DOI: | 10.1080/00268976.2016.1149243 |
| Popis: | We report here the total ionisation cross sections for CF3X and CF2X2 (X = H, Cl, Br and I) molecules by electron impact from ionisation threshold to 5 keV. The total inelastic cross section is obtained employing a quantum mechanical approach called spherical complex optical potential formalism. Then, using a semi-empirical complex scattering potential-ionisation contribution method, the ionisation cross section is derived from the inelastic cross section. The results obtained are compared with previous measurements and theoretical values, wherever available and a satisfactorily agreement is observed. The ionisation cross section values for CF2I2 molecule are reported for the first time. |
| Databáze: | OpenAIRE |
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