期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 20, 期 28, 页码 8636-8646出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201402415
关键词
imaging agents; lanthanides; macrocyclic ligands; photophysics; sensors
资金
- EPSRC
- Royal Society
- ERC [FCC 266804]
- Lyon Science Transfer Agency
- EPSRC [EP/L019124/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/L019124/1] Funding Source: researchfish
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.
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