In partial fulfillment of the requirements for a posthumous PhD diploma for Angela Valentin, a thesis defense of her work will take place in the CRPP amphitheatre on 11 December 2019 at 14h.
In attendance will be the jury consisting of Jeanne Crassous (Institut des Sciences Chimiques de Rennes), Lorenzo di Bari (University of Pisa), Jérôme Lacour (Univeristy of Geneva), and Cécile Zakri (University of Bordeaux).
The presentation will be delivered by E. Hillard and P. Rosa..
Friends and family are cordially invited to attend this commemoration of Angela’s work.
Dans le cadre de l’Idex de l’Université de Bordeaux, Guillaume Naulet, a reçu le prix de thèse “Sciences et Technologie”. Guillaume a effectué sa thèse au CRPP de 2015 à 2018, sous la direction de Fabien DUROLA et Harald BOCK, dans l’équipe M3.
Son travail concernait le développement de techniques de protection
pour la synthèse de larges arènes polycycliques par réaction de Perkin,
ce qui a notamment permis de former des rubans de Möbius moléculaires.
“La chimie organique est régie par de nombreuses règles établies au fil des expériences. Aujourd’hui, les chimistes explorent les limites de ces lois. Comme Fabien Durola et son équipe du Centre de recherche Paul Pascal (CNRS/Université de Bordeaux), qui prouvent avec leur cyclo-tris-hélicène qu’un composé aromatique peut être triplement torsadé, esthétique et atypique, de par ses propriétés électroniques induites.”
The Magnetism Network of the Greater Region won the 2018 interregional research prize for its collaborative fundamental research and R&D activities. Congratulations to the coordinator of this organizion, Thomas Hauet. Let’s wish the same success to the French and European Magnetometry Network!
This work demonstrates the possibility of modulating the spin state of the FeII sites and subsequently the magnetic properties of a [2×2] FeII grid-like complex by variation of the degree of deprotonation of the hydrazine-based N-H sites of the ligand in the complex. Evidence has been provided, both in the solid state and in solution, towards understanding the strong influence of the spin-crossover process on the pKas of the grid ligands, which exhibit a unique deprotonation pattern. The present study provides a demonstration of the effect of spin state switching of a chemical property, here on ligand pKa in a metallosupramolecular grid.
Sébastien Dhers, Abhishake Mondal, David Aguilà, Juan Ramírez, Sergi Vela, Pierre Dechambenoit, Mathieu Rouzières, Jonathan R. Nitschke, Rodolphe Clérac & Jean-Marie Lehn. Spin State Chemistry: Modulation of Ligand pKa by Spin State Switching in a [2×2] Iron(II) Grid-Type Complex J. Am. Chem. Soc. 2018, 140 (26), pp 8218–8227 DOI : 10.1021/jacs.8b03735
Incorporating functional molecules into sensor devices is an emerging area in molecular electronics that aims at exploiting the sensitivity of different molecules to their environment and turning it into an electrical signal. Among the emergent and integrated sensors, microelectromechanical systems (MEMS) are promising for their extreme sensitivity to mechanical events. However, to bring new functions to these devices, the functionalization of their surface with molecules is required. Herein, we present original electronic devices made of an organic microelectromechanical resonator functionalized with switchable magnetic molecules. The change of their mechanical properties and geometry induced by the switching of their magnetic state at a molecular level alters the device’s dynamical behavior, resulting in a change of the resonance frequency. We demonstrate that these devices can be operated to sense light or thermal excitation. Moreover, thanks to the collective interaction of the switchable molecules, the device behaves as a non-volatile memory. Our results open up broad prospects of new flexible photo- and thermo-active hybrid devices for molecule-based data storage and sensors.
Matias Urdampilleta, Cedric Ayela,
Pierre-Henri Ducrot, Daniel Rosario-Amorin, Abhishake Mondal, Mathieu
Rouzières, Pierre Dechambenoit, Corine Mathonière, Fabrice Mathieu, Isabelle
Dufour et Rodolphe Clérac Molecule-based microelectromechanical sensors Scientific Reports – Mai 2018 DOI: 10.1038/s41598-018-26076-2
Beach, of the Doerrer Group (Boston University), recently won a
prestigious Chateaubriand Fellowship. The Chateaubriand Fellowship is a
grant offered by the Embassy of France in the United States. It supports
outstanding Ph.D. students from American universities who wish to
conduct research in France for a period ranging from 4 to 9 months.
Chateaubriand fellows are selected through a merit-based competition,
through a collaborative process involving expert evaluators in both
program is divided into two subprograms: Humanities and Social Sciences
(HSS) which supports those who seek to study Humanities and Social
Sciences. Stephanie was awarded the Chateaubriand Fellowship in Science,
Technology, Engineering, Mathematics & Biology-Health (STEM), which
is for doctoral students who aim to initiate or reinforce
collaborations, partnerships or joint projects between French and
American research teams. This fellowship is offered by the Office for
Science & Technology (OST) of the Embassy of France in partnership
with American universities and French research organizations such as
CNRS, Inserm and Inria.
is currently working at the Centre de Recherche Paul Pascal, a CNRS
lab, in Bordeaux, France from February through May of 2018 to partner
with the group of Prof. Rodolphe Clérac. She is developing new
variations of the Doerrer group thiocarboxylate lantern complexes for
development as single molecule magnets.
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