Organometallics for Sustainable Chemistry and Quantum Technologies
Nocton Research group
We also consider the use of divalent lanthanides complexes as starting materials to build large trivalent soluble assemblies that may be used as catalysts for selective P-S or P-O hydrolysis. These new clusters may also be used as precursors for the formation of nanomaterial containing lanthanides for a variety of applications.
Xémard et al., Daton Trans, 2018, 47, 9226-9229
Over more than 50 years, intermediate valence states in lanthanide compounds have often resulted in unexpected or puzzling spectroscopic and magnetic properties. Such experimental singularities could not be rationalised until new theoretical models involving multiconfigurational electronic ground states were established. We gathered the different singularities that have been observed among lanthanide complexes are highlighted, the models used to rationalise them are detailed and how such electronic effects may be adjusted depending on energy and symmetry considerations is considered. Understanding and tuning the ground-state multiconfigurational behaviour in lanthanide complexes may open new doors to modular and unusual reactivities.
Tricoire et al., Chem. Eur. J., 2021, 27, 6860-6878
The synthesis of f-element complexes constitutes the strengh of our reserch group. We try to develop original synthetic paths for accessing new compounds of interest for catalysis, small molecules activation and magnetism but also highly original compounds for their singular bonding nature. We are looking at low- and high valent compounds as well as intermediate valent states and delta and phi-backbonding. For this topic, we recieved the support of the ANR (French research agency)
Low-valent lanthanides precursors are important pieces in the conception of more elaborated compounds with designer ligands. We look for more simple salts of divalent lanthanides that would be stable enough and usueful in further organometallic, coordination and small molecules activation studies. As an example, we have synthesized the Tm(OTf)2 salt and have use this salt to start investigating its spectroscopy.
Xémard et al. Angew. Chem. Int. Ed., 2017, 54, 4266