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Comparative analysis of conjugated alkynyl chromophore-triazacyclononane ligands for sensitized emission of europium and terbium

By Marine Soulie, Frederik Latzko, Emmanuel Bourrier, Virginie Placide, Stephen J. Butler, Robert Pal, James W. Walton, Patrice L. Baldeck, Boris Le Guennic, Chantal Andraud, Jurriaan M. Zwier, Laurent Lamarque, David Parker and Olivier Maury


This article was accepted for publication in the serial, Chemistry - A European Journal [© Wiley]. It has been published in final form\ud at http://dx.doi.org/10.1002/chem.201402415. This article may be used for non-commercial purposes in accordance\ud with Wiley-VCH Terms and Conditions for self-archiving.A series of europium and terbium complexes based on a functionalized triazacyclononane carboxylate or phosphinate macrocyclic ligand is described. The influence of the anionic group, that is, carboxylate, methylphosphinate, or phenylphosphinate, on the photophysical properties was studied and rationalized on the basis of DFT calculated structures. The nature, number, and position of electron-donating or electron-withdrawing aryl substituents were varied systematically within the same phenylethynyl scaffold in order to optimize the brightness of the corresponding europium complexes and investigate their two-photon absorption properties. Finally, the europium complexes were examined in cell-imaging applications, and selected terbium complexes were studied as potential oxygen sensors

Topics: Imaging agents, Lanthanides, Macrocyclic ligands, Photophysics, Sensors
Publisher: © Wiley-VCH Verlag GmbH & Co.
Year: 2014
DOI identifier: 10.1002/chem.201402415
OAI identifier: oai:dspace.lboro.ac.uk:2134/18776
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