The enhancement of luminescent properties of Tb 3+ complexes with tetra-1,3-diketone ligands promoted by the tetrathiacalix[4]arene scaffold
| Autor: | Rinas N. Nagimov, Sergey N. Podyachev, Svetlana N. Sudakova, Gulnaz Sh. Gimazetdinova, Dmitry V. Lapaev, Victor V. Syakaev, Olga B. Bazanova, Aidar T. Gubaidullin |
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| Rok vydání: | 2018 |
| Předmět: |
Diketone
biology 010405 organic chemistry Chemistry Spatial structure Organic Chemistry Nuclear magnetic resonance spectroscopy 010402 general chemistry biology.organism_classification 01 natural sciences Biochemistry Tautomer 0104 chemical sciences Drug Discovery Polymer chemistry Tetra Luminescence |
| Zdroj: | Tetrahedron Letters. 59:2695-2699 |
| ISSN: | 0040-4039 |
| Popis: | This is the first report on the synthesis and characterization of tetra-1,3-diketone derivatives of tetrthia- and calix[4]arenes substituted by acetylacetonyl or dipivaloylmethanyl moieties at the upper rim and bearing hydroxyl groups at the lower rim as ligands for Tb3+ complexes. The spatial structure and tautomeric content for the synthesized ligands have been determined by means of X-ray, IR and NMR spectroscopy. Comparison of the sensitizing properties of tetrathiacalix[4]arenes and their calix[4]arene analogues on the Tb3+-centered luminescence in DMF solutions has been performed. A substantial enhancement of the luminescent properties of Tb3+- complexes with tetra-1,3-diketone ligands promoted by the tetrathiacalix[4]arene scaffold was established. |
| Databáze: | OpenAIRE |
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