Space configuration and luminescence properties of polyphosphazenes with carbazole-containing side groups
| Autor: | Yuriy T. Kononenko, Jan Pielichowski, Dariusz Bogdal, Aleksandra Hanusek, Valeriy M. Yashchuk, Kostyantyn M. Kushnir, Vladislav Yu. Kudrya |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
chemistry.chemical_classification
Chemistry Carbazole Phosphor Polymer Chromophore Condensed Matter Physics Photochemistry Electron system Fluorescence Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials chemistry.chemical_compound Materials Chemistry Physical and Theoretical Chemistry Phosphorescence Luminescence Spectroscopy |
| Zdroj: | Journal of Molecular Liquids. 105:185-190 |
| ISSN: | 0167-7322 |
| DOI: | 10.1016/s0167-7322(03)00050-3 |
| Popis: | The absorption, fluorescence and phosphorescence of two novel polyorganophosphazenes containing separated carbazole side groups, a polymer chain with spacers (Pf2-sep) and without spacer (Pf2-conj), were studied. It was shown that spectral properties of the Pf2-sep polymer are connected mainly with optical transitions in individual carbazole chromophores. The optical properties of the Pf2-conj polymer are rather different compared to the Pf2-sep. That is caused by perturbation of the carbazole groups electron system by phosphor atoms and the influence of the carbazole groups (belonging to the same unit) on each other. This perturbation takes place under special relative geometrical displacement of carbazole and phosphor atoms. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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