Luminescent properties of europium complexes with bis(diphenylphosphino)alkane dioxides
| Autor: | Pavla Pekárková, Marek Nečas, Zdenek Spichal, Petr Taborsky |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
chemistry.chemical_classification
Alkane 010405 organic chemistry Excitation spectra Biophysics chemistry.chemical_element Crystallographic data Polymer Crystal structure 010402 general chemistry Photochemistry 01 natural sciences 0104 chemical sciences Crystallography chemistry Chemistry (miscellaneous) Europium Luminescence |
| Zdroj: | Luminescence. 26:650-655 |
| ISSN: | 1522-7235 |
| Popis: | Eu(NO3)3⋅5H2O and EuCl3⋅6H2O were allowed to react with bis(diphenylphosphino)alkane dioxides Ph2P(O)(CH2)nP(O)Ph2 (n = 2, 4, 6) to obtain polymeric and binuclear complexes. The prepared compounds were structurally characterized by X-ray diffraction. Luminescence measurements (emission and excitation spectra, quantum yields, lifetimes) were compared with crystallographic data in order to find a relationship between luminescent properties of the Eu(III) complexes and their structures. The Eu(III) polymers, especially [Eu(dpphO2)2Cl2]+Cl–}n, have shown extremely long luminescence lifetimes, up to 3.73 ms, as a result of a highly protecting hydrophobic shield. Copyright © 2011 John Wiley & Sons, Ltd. |
| Databáze: | OpenAIRE |
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