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Séminaire Chimie ED459

Solid state NMR characterization of materials – combined experimental and ab-initio investigations

Prof. Christel Gervais (LCMCP Laboratoire de Chimie de la Matière Condensée de Paris, UMR 7574, CNRS, Sorbonne Université, Collège de France, Paris)

publié le , mis à jour le

Le Mercredi 15 Janvier 2020 à 14h
IEM, salle de conférences (campus Balard / UM, bât. 40, 300 av. Émile-Jeanbrau)

Multinuclear solid-state NMR is an efficient and non perturbing approach to study complex materials, including interactions and interfaces between components, using for instance dipolar 2D correlation spectroscopies. The recent introduction of periodic first principles calculations of NMR parameters (GIPAW method) combined with structural DFT modeling provides additional local and accurate information on these systems at the nanoscale, supporting the interpretation of experimental data.

This approach will be illustrated with a large variety of examples including hybrid materials like small organic molecules adsorbed on an amorphous silica surface [1] or peptide-functionalized Metal Organic Frameworks [2], preceramic polymers as precursors of functional nitride-based ceramics [3], fossil samples [4] and glasses for bone regeneration [5].

In addition, a few results will be presented on the possibility to study the influence of nuclear motion induced by temperature on NMR parameters, using an experimental and theoretical coupled approach [6].

References

1. F. Tielens, N. Folliet, L. Bondaz, S. Etemovic, F. Babonneau, C. Gervais, T. Azaïs, J. Phys. Chem. C 2017, 121, 17339.
2. T. K. Todorova, X. Rozanska, C. Gervais, A. Legrand, L. N. Ho, P. Berruyer, A. Lesage, L. Emsley, D. Farrusseng, J. Canivet, C. Mellot-Draznieks, Chem. Eur. J. 2016, 22, 16531.
3. D. Fonblanc, D. Lopez-Ferber, M. Wynn, A. Lale, A. Soleilhavoup, A. Leriche, Y. Iwamoto, F. Rossignol, C. Gervais, S. Bernard, Dalton Trans. 2018, 47, 14580.
4. J. Aufort, C. Gervais, L. Ségalen, N. Labourdette, C. Coelho-Diogo, B. Baptiste, O. Beyssac, R. Amiot, C. Lécuyer, E. Balan, Palaeogeogr. Palaeoclimatol. Palaeoecol. 2019, 526, 80.
5. C. Bonhomme, X. Wang, I. Hung, Z. Gan, C. Gervais, C. Sassoye, J. Rimsza, J. Du, M. E. Smith, J. V. Hanna, S. Sarda, P. Gras, C. Combes, D. Laurencin, Chem. Commun. 2018, 54, 9591.
6. R. Nemausat, C. Gervais, C. Brouder, N.Trcera, A. Bordage, C. Coelho-Diogo, P. Florian, A. Rakhmatullin, I. Errea, L. Paulatto, M. Lazzeri, D. Cabaret, Phys. Chem. Chem. Phys. 2017, 19, 6246.

Contact local ICGM : Dr. Danielle Laurencin, C.R. CNRS (équipe IMNO)

Agenda

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