Gabriel Canard
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View article: Red‐to‐Near‐Infrared Electroluminescence and Low‐Threshold Amplified Spontaneous Emission from Solution‐Processable Fluorescent Diketopyrrolopyrrole Derivatives
Red‐to‐Near‐Infrared Electroluminescence and Low‐Threshold Amplified Spontaneous Emission from Solution‐Processable Fluorescent Diketopyrrolopyrrole Derivatives Open
A detailed investigation of the photophysical, electroluminescence, and amplified spontaneous emission (ASE) properties of two solution‐processable fluorescent diketopyrrolopyrrole derivatives is reported. Photophysical measurements are ca…
View article: Curcuminoid Derivatives with a Donor‐Acceptor‐Donor Architecture: an Outstanding Platform for Highly‐Efficient Near‐Infrared Electroluminescence and Amplified Spontaneous Emission
Curcuminoid Derivatives with a Donor‐Acceptor‐Donor Architecture: an Outstanding Platform for Highly‐Efficient Near‐Infrared Electroluminescence and Amplified Spontaneous Emission Open
The development of high‐efficiency near‐infrared (NIR) emitters for organic light‐emitting diodes (OLEDs) and organic semiconductor lasers has become an important target in organic photonics. Herein, it is demonstrated that donor‐acceptor‐…
View article: A pH-Responsive Cu-Corrole-Based Cage that Reversibly Encapsulates Fullerene in a Shapeshifting Low-Symmetry Cavity.
A pH-Responsive Cu-Corrole-Based Cage that Reversibly Encapsulates Fullerene in a Shapeshifting Low-Symmetry Cavity. Open
Artificial hosts combining chemical functionalities (recognition sites, stimuli responsive behaviour) in a low-symmetrical and guest-adaptive environment, are of major interest to better understand and mimic protein receptors. However, mol…
View article: Small far-red cationic benzoquinone diimine dyes
Small far-red cationic benzoquinone diimine dyes Open
Two compact far-red cationic benzoquinone diimine dyes were synthesized, having molecular weights lower than 400 or 300 Da and featuring light absorption properties centered around 700 nm.
View article: Transamination of Zwitterionic Quinones with Polyamines: The Carbon Bridge Matters
Transamination of Zwitterionic Quinones with Polyamines: The Carbon Bridge Matters Open
The one-pot transamination reactions on a zwitterionic benzoquinonemonoimine yield either a quinoxaline derivative or bis-zwitterionic macrocycles, depending on the number of carbon atoms bridging primary polyamines. These latter products,…
View article: Nickel Complex Based Electrodes for Li‐ion Batteries
Nickel Complex Based Electrodes for Li‐ion Batteries Open
This work focuses on the development of nickel‐based quinone complexes as electrode materials for next‐generation rechargeable batteries. These complexes were synthesized with different substituents and their potential as anode materials i…
View article: Bis‐Indeno‐Fused Tetraazaanthracene Hybrids: Straightforward Synthesis and Studies of Optical and Electronic Properties
Bis‐Indeno‐Fused Tetraazaanthracene Hybrids: Straightforward Synthesis and Studies of Optical and Electronic Properties Open
The synthesis and the studies of optical and electronic properties of new bis‐indenone‐fused tetraazaanthracene isomers as electron accepting materials are reported. TD‐DFT calculations have been also undertaken and corroborate experiments…
View article: Electrocatalytic Properties of <i>meso</i>‐ Perfluorinated Metallo Corroles for the Reduction of CO<sub>2</sub>
Electrocatalytic Properties of <i>meso</i>‐ Perfluorinated Metallo Corroles for the Reduction of CO<sub>2</sub> Open
Tetrapyrrolic containing metal complexes are among the most efficient molecular catalysts for the CO 2 reduction. Metalloporphyrins and phthalocyanines are currently under investigations and their catalytic properties are among the best mo…
View article: Controlled Reactivity of Viologens in Alkaline Solutions Via Cucurbit[7]uril Complexation
Controlled Reactivity of Viologens in Alkaline Solutions Via Cucurbit[7]uril Complexation Open
A series of N ‐alkyl‐ and N ‐aryl‐viologens has been studied in alkaline solutions. In this work, we evaluated the deuteration rate of the viologens in D 2 O solutions of pH values ranging from 7.3 to 12.7. Kinetic experiments and computat…
View article: High-Order Commensurate Zwitterionic Quinonoid Phase Induces a Nanoscale Dipole Lattice on Graphene
High-Order Commensurate Zwitterionic Quinonoid Phase Induces a Nanoscale Dipole Lattice on Graphene Open
International audience
View article: Two-step access to bis-<i>meso</i>-perfluoroalkyl-corroles towards <i>meso</i>-perfluoroacyl-ABC-corroles
Two-step access to bis-<i>meso</i>-perfluoroalkyl-corroles towards <i>meso</i>-perfluoroacyl-ABC-corroles Open
5,15- meso -Perfluoroalkyl-corroles were prepared via a two-step synthetic procedure. Macrocycles bearing long chains are precursors of ABC- meso -acyl-corroles when subjected to hydrolysis.
View article: Feasibility of multiple excited-state proton transfer processes in hydroxyquinoline-containing benzobisimidazole dyes
Feasibility of multiple excited-state proton transfer processes in hydroxyquinoline-containing benzobisimidazole dyes Open
Two new benzobisimidazole platforms incorporating 7-hydroxyquinoline moieties were synthesized and characterized to explore potential multiple proton transfer processes.
View article: Post-functionalization of triamino-phenazinium dyes to reach near-infrared emission
Post-functionalization of triamino-phenazinium dyes to reach near-infrared emission Open
We showed the possibility of redshifting the absorption and emission properties of triamino-phenazinium fluorophores by a one step post-synthesis strategy, involving the introduction of an electron-withdrawing group.
View article: Breaking Azacalix[4]arenes into Induline Derivatives
Breaking Azacalix[4]arenes into Induline Derivatives Open
Tetraamino-tetranitro-azacalixarene 5 is at the crossroad of two different families of compounds depending on the conditions and the agent used to reduce the NO2 groups: (1) azacalixphyrin 7 in neutral medium, or (2) phenazinium of type 8 …
View article: CCDC 2256019: Experimental Crystal Structure Determination
CCDC 2256019: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 2256023: Experimental Crystal Structure Determination
CCDC 2256023: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 2256032: Experimental Crystal Structure Determination
CCDC 2256032: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: A Strategy to Design Substituted Tetraamino-Phenazine Dyes and Access to an NIR-Absorbing Benzoquinonediimine-Fused Quinoxaline
A Strategy to Design Substituted Tetraamino-Phenazine Dyes and Access to an NIR-Absorbing Benzoquinonediimine-Fused Quinoxaline Open
The straightforward access to N- or C-substituted dinitro-tetraamino-phenazines (P1-P5) is enabled in oxidative conditions via formation of two intermolecular C-N bonds from accessible 5-nitrobenzene-1,2,4-triamine precursors. The photophy…
View article: Azacalixphyrin nanostructures
Azacalixphyrin nanostructures Open
Azacalixphyrins are used as building blocks to elaborate nanostructures with different shapes depending on the nature of the N-substituents. In this work, the formation of nanoribbons from N-alkyl azacalixphyrin 4, and nanodonuts from the …
View article: Deciphering Electronic and Structural Effects in Copper Corrole/Graphene Hybrids**
Deciphering Electronic and Structural Effects in Copper Corrole/Graphene Hybrids** Open
Non‐covalent hybrid materials based on graphene and A 3 ‐type copper corrole complexes were computationally investigated. The corroles complexes contain strong electron‐withdrawing fluorinated substituents at the meso positions. Our result…
View article: Core–Shell Multiwalled Carbon Nanotube/Cobalt Corrole Hybrids for the Oxygen Reduction Reaction
Core–Shell Multiwalled Carbon Nanotube/Cobalt Corrole Hybrids for the Oxygen Reduction Reaction Open
International audience
View article: CCDC 2074306: Experimental Crystal Structure Determination
CCDC 2074306: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 2074307: Experimental Crystal Structure Determination
CCDC 2074307: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 2169864: Experimental Crystal Structure Determination
CCDC 2169864: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …