Electron localization in negatively charged formamide clusters studied by photodetachment spectroscopy
| Autor: | Izumi Yagi, Naohiko Mikami, Tatsuya Tsukuda, Toshihiko Maeyama, Yuichi Negishi |
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| Rok vydání: | 2006 |
| Předmět: |
Photoemission spectroscopy
Chemistry Binding energy General Physics and Astronomy Electron Solvated electron Molecular physics Electron localization function Ion Physics::Atomic and Molecular Clusters Physics::Chemical Physics Physical and Theoretical Chemistry Atomic physics Electronic band structure Spectroscopy |
| Zdroj: | Phys. Chem. Chem. Phys.. 8:827-833 |
| ISSN: | 1463-9084 1463-9076 |
| DOI: | 10.1039/b514656a |
| Popis: | Size-dependent features of the electron localization in negatively charged formamide clusters (FAn−, n = 5–21) have been studied by photodetachment spectroscopy. In the photoelectron spectra for all the sizes studied, two types of bands due to different isomers of anions were found. The low binding energy band peaking around 1 eV is assigned to the solvated electron state by relative photodetachment cross-section measurements in the near-infrared region. It is suggested that nascent electron trapping is dominated by formation of the solvated electron. The higher energy band originates from the covalent anion state generated after a significant relaxation process, which exhibits a rapid increase of electron binding energy as a function of the cluster size. A unique behavior showing a remarkable band intensity of the higher energy band was found only for n = 9. |
| Databáze: | OpenAIRE |
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