期刊
JOURNAL OF MATERIALS CHEMISTRY C
卷 3, 期 12, 页码 2909-2917出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4tc02553a
关键词
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资金
- FWO-Vlaanderen (Fund Scientific Research - Flanders) [3E10813W]
- Spanish Ministry of Economy and Competitiveness [MAT2013-44463-R]
- Andalusian Regional Government [FQM-346]
- Feder Funds
- Hercules Foundation (Advanced Luminescence Setup'') [AUGE/09/024]
- Ghent University (UGent) [BOF 01N01010]
A periodic mesoporous organosilica (PMO) functionalized with dipyridyl-dihydropyridazine units has been successfully prepared by a hetero Diels-Alder reaction between the double bonds of an ethenylene-bridged PMO material and a substituted tetrazine. The ordering and mesoporosity of the parent material is maintained after the post-modification process, and the surface Diels-Alder adducts are clearly observable in the pores. These dipyridyl-dihydropyridazine moieties can form interesting chelates with lanthanide ions. Thus, two novel organic-inorganic luminescent hybrid materials have been obtained by linking of Eu3+ compounds to an ethene-PMO functionalized with dipyridyl-dihydropyridazine. Both materials have been studied in depth by photoluminescence spectroscopy and luminescence decay time measurements. Our results reveal the key role of surface Diels-Alder adducts as suitable sensitizing ligands for europium ions.
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