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Issue 12, 2015
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Eu3+@PMO: synthesis, characterization and luminescence properties

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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.

Graphical abstract: Eu3+@PMO: synthesis, characterization and luminescence properties

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Supplementary files

Article information

09 Nov 2014
03 Feb 2015
First published
05 Feb 2015

J. Mater. Chem. C, 2015,3, 2909-2917
Article type
Author version available

Eu3+@PMO: synthesis, characterization and luminescence properties

D. Esquivel, A. M. Kaczmarek, C. Jiménez-Sanchidrián, R. Van Deun, F. J. Romero-Salguero and P. Van Der Voort, J. Mater. Chem. C, 2015, 3, 2909
DOI: 10.1039/C4TC02553A

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