Luminescent properties of europium complexes with bis(diphenylphosphino)alkane dioxides
| Autoři | |
|---|---|
| Rok publikování | 2011 |
| Druh | Článek v odborném periodiku |
| Časopis / Zdroj | Luminescence |
| Fakulta / Pracoviště MU | |
| Citace | |
| www | http://dx.doi.org/10.1002/bio.1291 |
| Doi | http://dx.doi.org/10.1002/bio.1291 |
| Obor | Anorganická chemie |
| Klíčová slova | europium; coordination polymers; luminescence; diphosphine dioxides; crystal structures |
| 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 3.73ms, as a result of a highly protecting hydrophobic shield. |
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