Host Research Group
FR2_Molecular Materials & Magnetism (M3) Team - CRPP LAB_Rodolphe Clérac
Dr. Hab. Rodolphe Clérac
+33 5 56 84 56 50 or +33 6 03 51 74 16
Group description
The Molecular Materials & Magnetism (M3) team is a research group led by Dr. Hab. Rodolphe Clérac since 2001, which is working at the Centre de Recherche Paul Pascal (CRPP), a CNRS scientific center situated on the campus of the Université de Bordeaux.
The work of the M3 team is focused on molecule-based materials exhibiting electronically active (i.e., displaying charge or exciton transport properties) and/or magnetic properties, as well as their processing into useful forms such as nanocomposites, films or solutions. These molecule-based systems are built from transition metal complexes and organic radicals, which are generated in-situ or by post-synthetic redox modifications. Our research can thus be described as the synthesis, characterization and use of molecular materials resulting from a rationally engineered bond architecture in order to promote and control interesting electromagnetic and more generally physical properties. This work benefits from many national and international collaborations (e.g., Dr. A. Rogalev and F. Wilhelm at the European Synchrotron Radiation Facility, France; Dr. E. Suturina at the University of Bath, UK; Dr. A. Mailman at the University of Jyväskylä, Finland; Prof. J. Long at the University of Berkeley, USA; Prof. S.-i. Ohkoshi at the University of Tokyo,.. etc.) and also from our involvement in different national and European networks.
Our most relevant contribution to date is the development of a metal-organic magnet with large coercivity and ordering temperatures up to 242°C (published in Science, 2020, see below). This discovery has opened up highly promising prospects, which could lead to the next-generation of magnets that will be complementary to current inorganic systems.
Keywords
- Coordination Polymers
- Synthetic Chemistry
- Magnetic Materials
- Conducting materials
- Additive Manufacturing
Team Description
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Rodolphe Clérac (Principal Investigator)
ORCID: 0000-0001-5429-7418
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Corine Mathonière (Co-Principal Investigator)
ORCID: 0000-0002-4774-1610
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Pierre Dechambenoit (Research staff)
ORCID: 0000-0001-7850-2260
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Mathieu Rouzières (Research staff)
ORCID: 0000-0003-3457-3133
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Xavier Brilland (Research staff)
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Nathan Yutronkie (Post-Doctoral Researcher)
ORCID: 0000-0002-8297-9376
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Long-Fei Wang (Post-Doctoral Researcher (starting fall 2021))
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Dandan Lou (PHD Students)
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Abhijit Adak (PHD Students)
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Katia Dujarric (PHD Students (starting Sept. 2021))
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Mengting Suo (PHD Students (starting Sept. 2021))
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CNRS-Tokyo PhD student (PHD Students (starting Sept. 2021))
Projects
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High performance 2D conductive magnets through redox active coordination chemistry
Pl: R. Clérac
Funding Agency*: NAT (ANR - Agence Nationale de la Recherche)
Ongoing: yes
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Photoresponsive spin-crossover liquid crystals
Pl: R. Clérac & Long-Fei Wang
Funding Agency*: EU (projet Européen Marie Skłodowska-Curie Individual Fellowships 2020)
Ongoing: yes
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Room Temperature Molecular Magnets Switchable at Terahertz Wavelength: Towards Quantum Devices for Magnetic Recording
Pl: R. Clérac
Funding Agency*: INT (CNRS - University of de Tokyo)
Ongoing: yes
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Photo-Generated Molecule-Based Magnets
Pl: R. Clérac
Funding Agency*: INT (France-Berkeley Fund)
Ongoing: yes
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Photomagnetic monuclear octacyanometallates compounds
Pl: C. Mathonière
Funding Agency*: EUR (PHC-Campus France Polonium)
Ongoing: yes
Publications
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P. Perlepe, I. Oyarzabal, A. Mailman, M. Yquel, M. Platunov, et al., Metal-organic magnets with large coercivity and ordering temperatures up to 242°C, Science, 2020
10.1126/science.abb3861 -
K. S. Pedersen, P. Perlepe, M. L. Aubrey, D. N. Woodruff, S. E. Reyes-Lillo, et al., Formation of the layered conductive magnet CrCl2(pyrazine)2 through redox-active coordination chemistry, Nature Chemistry, 2018
10.1038/s41557-018-0107-7 -
J.-L. Liu, K. S. Pedersen, S. M. Greer, I. Oyarzabal, A. Mondal, et al., Access to heteroleptic fluorido‐cyanido complexes with a large magnetic anisotropy via fluoride abstraction, Angewandte Chemie International Edition, 2020
10.1002/anie.201914934 -
D. Rosario-Amorin, P. Dechambenoit, A. Bentaleb, M. Rouzières, C. Mathonière, R. Clérac, Multistability at Room Temperature in a Bent-Shaped Spin-Crossover Complex Decorated with Long Alkyl Chains, Journal of the American Chemical Society, 2018
10.1021/jacs.7b11042 -
X. Ma, E. A. Suturina, M. Rouzieres, M. Platunov, F. Wilhelm, et al., Using Redox-Active π Bridging Ligand as a Control Switch of Intramolecular Magnetic Interactions, Journal of the American Chemical Society, 2019
10.1021/jacs.9b03044
Research Lines
ADVANCED MATERIALS AND PROCESSES
- By chemical design and processing, we will develop a new generation of two-dimensional (2D) molecule-based magnets that operate at high temperatures (i.e., above the boiling point of liquid nitrogen, minimum recommended for applications). The targeted compounds will consist of coordination polymers featuring low-cost redox active ligands and abundant metal ions, which will be prepared in-situ or by post-synthetic chemical reduction of metal-organic compounds of higher oxidation states. The employed synthetic strategy will allow to combine two properties of technological interest, magnetism and electrical conductivity, in a single compound, providing additional scientific interest and technological possibilities to the resulting materials.
- The aim of this research line is to study methodologies to implement known or newly synthesized conductive and/or magnetic coordination polymers in existing technologies. For such purpose, we will fabricate functional molecule-based films or materials of different shapes by additive manufacturing technologies, which will range from conventional printing methodologies in which the coordination polymers will be directly blended into polymeric matrices to more innovative approaches. The obtained films will be tested for their use in specific high-value applications.
The M3 team has already collaborated with the “Multifunctional Magnetic and/or Porous Materials” research group led by Prof. J. M. Seco at the Chemistry Faculty of UPV. Dr. R. Clérac and Prof. J. M. Seco jointly supervised a postdoctoral fellow during 2019-2021 (Dr. I. Oyarzabal, fellow of the Basque Government) and in 2020, the M3 team hosted for 3 months the Ph.D. student Dr. A. Zabala-Lekuona (fellow of the Basque Government 2017-2021, directors: Prof. J. M. Seco at UPV and Prof. E. Colacio at the University of Granada, Spain). This collaboration has already led to the publication of two research articles (n° 1 and 3 in the above table).
Additionally, the M3 team is starting a collaboration with BCMaterials - Basque Center for Materials, Applications and Nanostructures, where Dr. I. Oyarzabal is currently working as an Ikerbasque Research Fellow after working for almost 4 years at the M3 team.