Metallogels: a novel approach for the nanostructuration of single-chain magnets
| Autor: | Felix Houard, Guiseppe Cucinotta, Thierry Guizouarn, Yan Suffren, Guillaume Calvez, Carole Daiguebonne, Olivier Guillou, Franck Artzner, Matteo Mannini, Kevin Bernot |
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| Přispěvatelé: | 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), National Interuniversity Consortium of Materials Science and Technology (INSTM ), Università degli Studi di Firenze = University of Florence (UniFI), Institut de Physique de Rennes (IPR), Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS), This work was supported by the French ministry of high education and research (MESRI), Region Bretagne, Rennes Metropole, INSA PPI program, CNRS via Florennes PICS Program. The authors acknowledge M. Dallon (CDIFX) for crystal structure refinement, K. B. acknowledges Institut Universitaire de France. F. H. acknowledges SATT Ouest Valorisation for funding. M. M. and G. C. acknowledge the Italian MIUR, through the Project 'Dipartimenti di Eccellenza 2018-2022 (ref. no. B96C1700020008) and Fondazione Cassa di Risparmio di Firenze (Project SPINE-2 2020.1634) for the financial support. Surface depositions have been carried out at the surface science laboratories of the MatchLab Interdepartmental Research Unit, University of Florence. |
| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Materials Horizons Materials Horizons, 2023, ⟨10.1039/d2mh01158a⟩ |
| ISSN: | 2051-6347 |
| DOI: | 10.1039/d2mh01158a⟩ |
| Popis: | International audience; In this study we demonstrate that single-chain magnets (SCMs) can be assembled in gel phase and transferred intact on surface. We take advantage of a family of SCMs based on Tb(III) ions and nitronyl-nitroxides radicals functionalized with short alkyl chains known to form crystalline supramolecular nanotubes interacting with heptane acting as crystallizing solvent. When the radicals are functionalized with long aliphatic chains a robust gel is formed with similar structural and functional properties respect to its crystalline parent. Indeed, a small-angle X-ray scattering (SAXS) study unambiguously demonstrates that the gel is made of supramolecular nanotubes: the high stability of the gel allows the determination from SAXS data of precise nanotube metrics such as diameter, helical pitch and monoclinic cell of the folded 2D crystal lattice along the tube direction. Additionally, static and dynamic magnetic investigations show the persistence of the SCM behavior in the metallogel. Last, on-surface gelation provides thick films as well as sub-monolayer deposits of supramolecular nanotubes on surface as evidenced by atomic force microscopy (AFM) observations. This paves the road toward magnetic materials and devices made of SCMs profiting of their isolation on surface as individual chains. |
| Databáze: | OpenAIRE |
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