1. Solid-state: Versus solution investigation of a luminescent chiral BINOL-derived bisphosphate single-molecule magnet
- Author
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Vincent Montigaud, Frédéric Gendron, Nicolas Giraud, François Riobé, Fabrice Pointillart, Boris Le Guennic, Olivier Maury, Olivier Cador, Carlo Andrea Mattei, Vincent Dorcet, Claudia Lalli, Sandrine Denis-Quanquin, Gilles Argouarch, Institut des Sciences Chimiques de Rennes (ISCR), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Chimie - UMR5182 (LC), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques (LCBPT - UMR 8601), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), 725184SA18006-LnCPLSMMEuropean Research Council, ERCCentre National de la Recherche Scientifique, CNRSUniversité de Rennes 1, Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-École normale supérieure - Lyon (ENS Lyon)-Institut de Chimie du CNRS (INC), and Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)
- Subjects
Computational investigation ,Circular dichroism ,Materials science ,Luminescence ,Coordination polymer ,Dichroism ,Polymers ,[CHIM.INOR]Chemical Sciences/Inorganic chemistry ,010402 general chemistry ,Ligands ,01 natural sciences ,Dysprosium compounds ,Nuclear magnetic resonance ,Inorganic Chemistry ,Paramagnetism ,chemistry.chemical_compound ,Mononuclear structures ,Stereochemistry ,[CHIM]Chemical Sciences ,Single-molecule magnet ,HOMO/LUMO ,One dimensional ,010405 organic chemistry ,Ligand ,Electronic circular dichroism ,Coordination Polymers ,Molecules ,Crystal-field splitting ,0104 chemical sciences ,Crystallography ,Enantiopure drug ,chemistry ,Dichloromethane ,Crystal field theory ,Magnets ,Optimized structures ,Structural transformation - Abstract
International audience; The enantiopure coordination polymer [Dy(hfac)3((S/R)-L)]n ([(S/R)-1]n) involving a BINOL-derived bisphosphate ligand (S/R)-L is reported. Paramagnetic NMR and computational investigations demonstrated the formation of mononuclear species [(S/R)-1] in CH2Cl2 solution and its optimized structure was determined. The experimental electronic circular dichroism signals of (S/R)-L were strongly enhanced after metal coordination [(S/R)-1]. Both polymeric and mononuclear structures displayed field-induced Single-Molecule Magnet (SMM) behaviour with similar multi-relaxation processes due to the retention of crystal-field splitting determined by CASSCF calculations, despite the strong structural transformation between the two media. The HOMO ? LUMO transition of the (S)-L ligand induced the classical Dy(iii) emission at 77 K that was correlated with the magnetic properties. [(S)-1]n is described as one-dimensional assembly of chiral luminescent Single-Ion Magnets (SIMs).
- Published
- 2021
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