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HERO ID
4142829
Reference Type
Journal Article
Title
Lanthanide Fluorobenzoates as Bio-Probes: a Quest for the Optimal Ligand Fluorination Degree
Author(s)
Kalyakina, AS; Utochnikova, VV; Bushmarinov, IS; Le-Deygen, IM; Volz, D; Weis, P; Schepers, U; Kuzmina, NP; Bräse, S
Year
2017
Is Peer Reviewed?
Yes
Journal
Chemistry: A European Journal
ISSN:
0947-6539
EISSN:
1521-3765
Volume
23
Issue
59
Page Numbers
14944-14953
Language
English
PMID
28833886
DOI
10.1002/chem.201703543
Web of Science Id
WOS:000413337400033
Abstract
The thorough study of fluorinated benzoates of lanthanides (Eu, Tb, Nd, Er, Yb, Gd, La, Lu) is reported. Their composition in single crystal and powder state revealed two predominant structural motifs. An in-depth luminescence study has been performed on the reported fluorobenzoates, showing, that terbium and europium complexes in solid state possess high luminescence intensity with the quantum yield of up to 69 %. High solubility in most organic solvents, as well as in water, combined with the high luminescence intensity in water solution and non-toxicity allowed the testing of europium complexes as bioprobes in cellulo. Among all tested fluorobenzoates, europium 2-fluorobenzoate dihydrate combined the best luminescent properties, thermodynamic stability, aqueous solubility, and non-toxicity, and was shown to be a viable bio-marker.
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