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

Soulié, Marine and Latzko, Frédéric and Bourrier, Emmanuel and Placide, Virginie and Butler, Stephen J. and Pal, Robert and Walton, James W. and Baldeck, Patrice L. and Le Guennic, Boris and Andraud, Chantal and Zwier, Jurriaan M. and Lamarque, Laurent and Parker, David and Maury, Olivier (2014) 'Comparative analysis of conjugated alkynyl chromophore-triazacyclononane ligands for sensitized emission of europium and terbium.', Chemistry : a European journal., 20 (28). 8636 -8646.


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.

Item Type:Article
Keywords:Imaging agents, Lanthanides, Macrocyclic ligands, Photophysics, Sensors.
Full text:(AM) Accepted Manuscript
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Publisher statement:This is the accepted version of the following article: Soulié, M., Latzko, F., Bourrier, E., Placide, V., Butler, S. J., Pal, R., Walton, J. W., Baldeck , P. L., Le Guennic, B., Andraud, C., Zwier, J. M., Lamarque, L., Parker, D. and Maury, O. (2014), Comparative Analysis of Conjugated Alkynyl Chromophore–Triazacyclononane Ligands for Sensitized Emission of Europium and Terbium. Chemistry - a European Journal, 20 (28): 8636-8646, which has been published in final form at This article may be used for non-commercial purposes in accordance with Wiley-VCH Terms and Conditions for self-archiving.
Date accepted:No date available
Date deposited:14 November 2014
Date of first online publication:17 June 2014
Date first made open access:No date available

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