Evidence for weakly bound electrons in non-irradiated alkane crystals. The electrons as a probe of structural differences in crystals
| Autor: | Pawel Rochowski, M. Gagos, Maciej Grzegorczyk, K. Kornarzynski, L. E. Misiak, M. Pietrow, J. Szurkowski |
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| Rok vydání: | 2014 |
| Předmět: |
Models
Molecular Alkane chemistry.chemical_classification Chemical Physics (physics.chem-ph) Materials science Molecular Conformation General Physics and Astronomy FOS: Physical sciences Electrons Electron Molecular physics Spectral line Positron chemistry Ionization Excited state Physics - Chemical Physics Alkanes Physical and Theoretical Chemistry Absorption (electromagnetic radiation) Conformational isomerism |
| DOI: | 10.48550/arxiv.1411.0018 |
| Popis: | It is generally assumed that weakly bound (trapped) electrons in organic solids come only from radiolytical (or photochemical) processes like ionization caused by an excited positron entering the sample. This paper presents evidence for the presence of these electrons in non-irradiated samples of docosane. This can be due to the triboelectrification process. We argue that these electrons can be located (trapped) either in interlamellar gaps or in spaces made by non-planar conformers. Electrons from the former ones are bound more weakly than electrons from the latter ones. The origin of Vis absorption for the samples is explained. These spectra can be used as a probe indicating differences in the solid structures of hydrocarbons. |
| Databáze: | OpenAIRE |
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