The Luminescence and Photochemical Behavior of Boron Difluoride Ketoiminates
| Autor: | Elena V. Fedorenko, V. G. Kuryavyi, Galina O. Tretyakova, A. G. Mirochnik, L. A. Lim, V. A. Reutov, A. V. Trifonov |
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| Rok vydání: | 2017 |
| Předmět: |
Quenching (fluorescence)
010405 organic chemistry Chemistry Photodissociation Halide Crystal structure Polyethylene 010402 general chemistry Photochemistry 01 natural sciences Chemical reaction Atomic and Molecular Physics and Optics 0104 chemical sciences Electronic Optical and Magnetic Materials chemistry.chemical_compound Irradiation Luminescence |
| Zdroj: | Optics and Spectroscopy. 123:871-874 |
| ISSN: | 1562-6911 0030-400X |
| Popis: | The photochemical behavior of boron difluoride 3-amino-1-phenyl-2-buten-1-one (I) and 3-methylamino-1-phenyl-2-buten-1-one (II) in polyethylene (PE) is comparatively studied. It is found that the photochemical behavior strongly depends on the crystal structure of complexes. UV irradiation of complex I in PE leads to luminescence quenching due to photodimerization. In samples kept in the dark, photodimers dissociate, which leads to an increase in the luminescence intensity of compound I compared to initial nonirradiated samples. In contrast to compound I, photolysis of II in PE revealed no noticeable changes in the luminescence intensity. |
| Databáze: | OpenAIRE |
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