Publications scientifiques
Tao Liu
Autres affiliations : Université de Strasbourg
Aline Nonat
Autres affiliations : Université de Strasbourg
Maryline Beyler
Autres affiliations : Université de Bretagne Occidentale
Katia Nchimi Nono
Autres affiliations : Université de Strasbourg
Olivier Jeannin
Autres affiliations : Institut des Sciences Chimiques de Rennes
Franck Camerel
Autres affiliations : Institut des Sciences Chimiques de Rennes
François Debaene
Autres affiliations : Université de Strasbourg
Sarah Cianférani
Autres affiliations : Université de Strasbourg
Martín Regueiro‐Figueroa
Raphaël Tripier* (Auteur correspondant)
Autres affiliations : Centre National de la Recherche Scientifique · Université de Bretagne Occidentale · Université de Strasbourg
Carlos Platas‐Iglesias* (Auteur correspondant)
Autres affiliations : Centre National de la Recherche Scientifique · Université de Bretagne Occidentale · Université de Strasbourg
Loı̈c J. Charbonnière* (Auteur correspondant)
Autres affiliations : Centre National de la Recherche Scientifique · Université de Bretagne Occidentale · Université de Strasbourg
Angewandte Chemie International Edition
Lanthanide complexes (Ln=Eu, Tb, and Yb) that are based on a C2 -symmetric cyclen scaffold were prepared and characterized. The addition of fluoride anions to aqueous solutions of the complexes resulted in the formation of dinuclear supramolecular compounds in which the anion is confined into the cavity that is formed by the two complexes. The supramolecular assembly process was monitored by UV/Vis absorption, luminescence, and NMR spectroscopy and high-resolution mass spectrometry. The X-ray crystal structure of the europium dimer revealed that the architecture of the scaffold is stabilized by synergistic effects of the EuFEu bridging motive, π stacking interactions, and a four-component hydrogen-bonding network, which control the assembly of the two [EuL] entities around the fluoride ion. The strong association in water allowed for the luminescence sensing of fluoride down to a detection limit of 24 nM.
