Comparative Analysis of Conjugated Alkynyl Chromophore–Triazacyclononane Ligands for Sensitized Emission of Europium and Terbium. Issue 28 (17th June 2014)

• Record Type: Journal Article
• Authors: Soulié, Marine; Latzko, Frédéric; Bourrier, Emmanuel; Placide, Virginie; Butler, Stephen J.; Pal, Robert; Walton, James W.; Baldeck , Patrice L.; Le Guennic, Boris; Andraud, Chantal; Zwier, Jurriaan M.; Lamarque, Laurent; Parker, David; Maury, Olivier
• Is Part Of: Chemistry. Volume 20:Issue 28(2014)
• Page Start: 8636
• Page End: 8646
• Publication Date: 2014-06-17
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201402415
• Languages: English
• ISSNs: 0947-6539

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>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.</p> </abstract>