Publications

ou physique

Mechanofluorochromism of a Difluoroboron-β-Diketonate Derivative at the Nanoscale

Mechanofluorochromic nanoparticles have been prepared from a difluoroboron β-diketonate complex, and their behavior has been investigated at the nanoscale using atomic force microscopy (AFM) coupled with fluorescence spectroscopy. Two types of…

Marine Louis, Cristian Pinẽro García, Arnaud Brosseau, Clémence Allain, Rémi Métivier

Journal of Physical Chemistry Letters - 2019

Science des matériaux

Fluorescent Zr(IV) Metal–Organic Frameworks Based on an Excited-State Intramolecular Proton Transfer-Type Ligand

We report here the preparation of a series of Zr(IV) Metal Organic Frameworks of the MIL-140 structure type incorporating a ligand exhibiting an intense Excited State Intramolecular Proton Transfer (ESIPT) fluorescence. These solids were obtained by…

Virgile Trannoy, Nathalie Guillou, Carine Livage, Catherine Roch-Marchal, Mohamed Haouas, Anne Léaustic, Clémence Allain, Gilles Clavier, Pei Yu, Thomas Devic

Inorganic Chemistry - 2019

Microélectronique

Electrodeposition of Silver Nanoparticles on Reduced Graphene Functionalized by Pyridine-Pyridazine Units: Application to Surface-Enhanced Raman Spectroscopy and Electrocatalysis

A new and versatile method to prepare Ag nanoparticles on functionalized graphene sheets is described. In a first step, pyridine‐pyridazine units are introduced on graphene sheets by cycloaddition reaction with a tetrazine derivative. Then the…

Yahdi Bin Rus, Laurent Galmiche, Pierre Audebert, Alexa Courty, Emmanuel Maisonhaute, Fabien Miomandre

ChemistrySelect - 2019

ou physique

Optical chemosensors for metal ions in aqueous medium with polyfluorene derivatives: Sensitivity, selectivity and regeneration

Six polyfluorene derivatives, P1-P6, were synthesized and investigated as responsive materials for the optical sensing of metal ions in an aqueous medium. They were designed by combining carbazole with fluorene units within the backbone. Carbazole…

Xinyang Wang, Qiqiao Lin, Sasikumar Ramachandran, Gaëlle Pembouong, Robert Bernard Pansu, Isabelle Leray, Bérengère Lebental, Gaël Zucchi

Sensors and Actuators B: Chemical - 2019

Autre

Couplage de la microscopie de fluorescence à la microscopie électrochimique : des solutions aux surfaces

L'électrofluorochromisme est l'étude de la modulationde la fluorescence d'un fluorophore par le contrôle électrochimique du degréd'oxydation d'une entité électroactive. Fluorophore et entité électroactivepeuvent être confondus. C'est le cas par…

Laetitia Legras

Microélectronique

Potentialités des Heptazines pour l’Ingénierie des Interfaces des Dispositifs de l’Electronique Imprimée

Issoufou Ibrahim Zamkoye, Gabin Galnon, Clémence Allain, Reḿi Antony, Thierry Trigaud, Pierre Audebert, Bernard Ratier, Johann Bouclé

3ème Congrès National Sciences et Technologies des Systèmes pi-Conjugués (SPIC 2019) - 2019

Chimie

Photoreduction of triplet thioxanthone derivative by azolium tetraphenylborate: a way to photogenerate N-heterocyclic carbenes

Although N-heterocyclic carbenes (NHCs) have brought profound changes in catalytic organic synthesis, their generation generally requires an inert atmosphere and harsh conditions. To overcome these limitations, an air-stable NHC photogenerator has…

Thi Kim Hoang Trinh, Fabrice Morlet-Savary, Julien Pinaud, Patrick Lacroix-Desmazes, Corine Reibel, Cécile Joyeux, Didier Le Nouen, Rémi Métivier, Arnaud Brosseau, Valérie Héroguez, Abraham Chemtob

Physical Chemistry Chemical Physics - 2019

Chimie

New TBT based conducting polymers functionalized with redox-active tetrazines

We describe the synthesis of two new polymerizable monomers, and the subsequent polymers functionalized by tetrazine pendant groups, along with their electrochemical behaviour and fluorescence properties. In all cases a very stable conducting…

Laetitia Guerret-Legras, Pierre Audebert, Jean-Frédéric Audibert, Claude Niebel, Thibaut Jarrosson, Françoise Serein-Spirau, Pierre Lère-Porte

Journal of Electroanalytical Chemistry - 2019

Chimie

Multivalent Recognition at Fluid Surfaces: The Interplay of Receptor Clustering and Superselectivity

The interaction between a biological membrane and its environment is a complex process, as it involves multivalent binding between ligand/receptor pairs, which can self-organise in patches. Any description of the specific binding of biomolecules to…

Galina V Dubacheva, Tine Curk, Daan Frenkel, Ralf Richter

Journal of the American Chemical Society - 2019

Chimie de coordination

Dual Light and Redox Control of NIR Luminescence with Complementary Photochromic and Organometallic Antennae

With the help of a judicious association between dithienylethene (DTE) units, an ytterbium ion, and a ruthenium carbon-rich complex, we describe (i) the efficient (on/off) switching of pure NIR luminescence with a photochromic unit absorbing in the…

Hassan Al Sabea, Lucie Norel, Olivier Galangau, Rémi Métivier, Thierry Roisnel, Olivier Maury, Christophe Bucher, François Riobé, Stéphane Rigaut

Journal of the American Chemical Society - 2019