title: A family of lanthanide-based coordination polymers with boronic Acid as ligand.
abstract: Reactions in water between the sodium salt of 4-carboxyphenylboronic acid (Hcpb) and lanthanide ions (Pr-Nd, Sm-Lu, and Y) led to a family of lanthanide-based coordination polymers with general chemical formula {[Ln(cpbOH)(H2O)2](cpb)}∞. Structural characterizations were ensured by single-crystal X-ray diffraction and solid-state NMR spectroscopy ((11)B, (13)C, and (89)Y). This family of compounds constitutes the first example of lanthanide-based coordination polymers involving 4-carboxyphenylboronic acid as ligand. To evaluate their potential usefulness, luminescent and magnetic properties of some of the compounds that constitute this family were explored. From a magnetic point of view, the Yb(III) compound is the more promising. On the other hand, upon UV irradiation (λexc = 303 nm) ligand phosphorescence is quite intense and offers a sizable blue component to emission spectra. This is quite unusual and can constitute an asset as far as white emission is targeted. Moreover, luminescence properties of these compounds are highly temperature-dependent, and some of them seem promising as molecular thermometers.
authors.affiliation: †INSA, UMR 6226 and ‡ENSCR, UMR 6226, Institut des Sciences Chimiques de Rennes, F-35708 Rennes, France.
authors.forename: Xiao
authors.initials: X
authors.lastname: Fan
authors.affiliation: †INSA, UMR 6226 and ‡ENSCR, UMR 6226, Institut des Sciences Chimiques de Rennes, F-35708 Rennes, France.
authors.forename: Stéphane
authors.initials: S
authors.lastname: Freslon
authors.affiliation: †INSA, UMR 6226 and ‡ENSCR, UMR 6226, Institut des Sciences Chimiques de Rennes, F-35708 Rennes, France.
authors.forename: Carole
authors.initials: C
authors.lastname: Daiguebonne
authors.affiliation: †INSA, UMR 6226 and ‡ENSCR, UMR 6226, Institut des Sciences Chimiques de Rennes, F-35708 Rennes, France.
authors.forename: Laurent Le
authors.initials: LL
authors.lastname: Pollès
authors.affiliation: †INSA, UMR 6226 and ‡ENSCR, UMR 6226, Institut des Sciences Chimiques de Rennes, F-35708 Rennes, France.
authors.forename: Guillaume
authors.initials: G
authors.lastname: Calvez
authors.affiliation: †INSA, UMR 6226 and ‡ENSCR, UMR 6226, Institut des Sciences Chimiques de Rennes, F-35708 Rennes, France.
authors.forename: Kevin
authors.initials: K
authors.lastname: Bernot
authors.affiliation: †INSA, UMR 6226 and ‡ENSCR, UMR 6226, Institut des Sciences Chimiques de Rennes, F-35708 Rennes, France.
authors.forename: Xiaohui
authors.initials: X
authors.lastname: Yi
authors.affiliation: †INSA, UMR 6226 and ‡ENSCR, UMR 6226, Institut des Sciences Chimiques de Rennes, F-35708 Rennes, France.
authors.forename: Gang
authors.initials: G
authors.lastname: Huang
authors.affiliation: †INSA, UMR 6226 and ‡ENSCR, UMR 6226, Institut des Sciences Chimiques de Rennes, F-35708 Rennes, France.
authors.forename: Olivier
authors.initials: O
authors.lastname: Guillou