Electric Permittivity in Individual Atomic and Molecular Systems Through Direct Associations with Electric Dipole Polarizability and Chemical Hardness
| Autor: | Paweł Szarek |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Electromagnetic field
Permittivity 010304 chemical physics Chemistry Electric susceptibility Dielectric Electron 010402 general chemistry 01 natural sciences 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Dipole Delocalized electron General Energy Polarizability Chemical physics 0103 physical sciences Physical and Theoretical Chemistry Atomic physics |
| Zdroj: | The Journal of Physical Chemistry C. 121:12593-12602 |
| ISSN: | 1932-7455 1932-7447 |
| Popis: | The particular role in the interaction with external electromagnetic fields is played by local dielectric environment, hence the electric permittivity of a medium. This includes both the intramolecular screening effects as well the neighbor interactions with, i.e., solvent molecules, which conclude in modified electronic transport properties, i.e., of single-molecule junctions. Specific features of molecular (a few electron) systems require a unique approach to their characterization because transfer of just one electron alters the system significantly. Under these circumstances the electron–electron interaction depicted through a screening phenomenon in individual systems has been directly related to electric dipole polarizability and chemical hardness. The relation with these two fundamental electronic response functions quantifies a physical basis for field energy storage as associated with charge delocalization. This sheds new light on how the chemical reactivity affects behavior of molecular electron... |
| Databáze: | OpenAIRE |
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