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Affichage des publications 141 à 150 sur 858 au total

photonique

Characterizing nanometric thin films with far-field light

Ultra-thin, transparent films are being used as protective layers on semiconductors, solar cells, as well as for nano-composite materials and optical coatings. Nano-sensors, photonic devices and calibration tools for axial super-resolution…

Hodaya Klimovsky, Omer Shavit, Carine Julien, Ilya Olevsko, Mohamed Hamode, Yossi Abulafia, Hervé Suaudeau, Vincent Armand, Martin Oheim, Adi Salomon

Advanced Optical Materials -

ou physique

Nondestructive All-Optical Readout through Photoswitching of Intramolecular Excimer Emission

We report the first intramolecular excimer photoswitching induced by molecular motion within a dithienylethene (DTE) molecule without destructive readout. The photochromic compound DTE bears two pyrene chromophores, judiciously positioned to face…

Marie Barale, Muriel Escadeillas, Gregory Taupier, Yann Molard, Clément Orione, Elsa Caytan, Rémi Métivier, Julien Boixel

Journal of Physical Chemistry Letters -

Chimie-Physique

Chloride Binding Modulated by Anion Receptors Bearing Tetrazine and Urea

Modulation and fine-tuning of the strength of weak interactions to bind anions are described in a series of synthetic receptors. The general design of the receptors includes both a urea motif and a tetrazine motif. The synthetic sequence towards…

Romain Plais, Guy Gouarin, Amélie Bournier, Olfa Zayene, Vanessa Mussard, Flavien Bourdreux, Jérome A Marrot, Arnaud Brosseau, Anne Gaucher, Gilles Clavier, Jean‐yves Salpin, Damien Prim

ChemPhysChem -

ou physique

Photoisomerization of a 4-dicyanomethylene-2-methyl-6-( p -dimethylaminostyryl)-4 H -pyran analog dye: a combined photophysical and theoretical investigation

A combination of experimental and theoretical investigations of a photoisomerizable analog of 4-dicyanomethylene-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran (DCM) dye molecule is presented. We provide evidence that the 4 main isomers and conformers…

Yang Zhou, Stéphane Maisonneuve, Lorenzo Casimiro, Pascal Retailleau, Juan Xie, François Maurel, Rémi Métivier

Physical Chemistry Chemical Physics -

Matériaux

Spectroscopy and hydrodynamics of nanoparticles in solution

Functionalized nanoparticles (NPs) receive interest for application in light-energy conversion, imaging and sensing, and photomedecine. Often, the particles are dispersed as individual entities in a liquid, in the ideal case behaving as a colloidal…

Martinus H. V. Werts, Clyde Midelet, Matthieu Loumaigne, Johanna Midelet, Antonios G. Kanaras, Anne Débarre

28th IUPAC Symposium on Photochemistry -

Matériaux

Patterning Gold Nanorod Assemblies by Deep-UV Lithography

We present a new method to pattern assemblies of gold nanorods (GNRs) on substrates and a study of the near-field coupling induced by the aggregation of the nanoparticles. Combination of deep-UV lithography and controlled deposition of…

Céline Jégat, Edouard Rollin, Ludovic Douillard, Olivier Soppera, Keitaro Nakatani, Guillaume Laurent

Journal of Physical Chemistry C -

Biophysique

Synthesis and Spectroscopic Characterization of Novel Thiourea-Bearing Photoactivatable NADPH Mimics Targeting NO Synthases

Abstract A new set of photoactivatable NADPH mimics bearing a thiourea linkage between a diarylbutadiene and an adenosine moiety functionalized by O-carboxymethyl groups has been designed and synthesized in a convergent strategy. These compounds…

Clément Polese, Eric Deprez, Patrick Tauc, Nicolas Bogliotti, Juan Xie

Synthesis: Journal of Synthetic Organic Chemistry -

Chimie organique

Circularly Polarized Luminescence and Circular Dichroism of Bichromophoric Difluoroboron‐β‐diketonates: Inversion and Enhanced Chirality Based on Spatial Arrangements and Self‐Assembly

We synthesized two bichromophoric difluoroboron-β-diketonates (DFB) connected in para and meta positions by using cyclohexane diamine as a chiral bridge (para and meta (R/S)-CyDFB). TD-DFT calculations revealed that the variation in connectivity of…

Joy Ann Panis, Marine Louis, Arnaud Brosseau, Shouhei Katao, Florencio de los Reyes, Takuya Nakashima, Rémi Métivier, Clémence Allain, Tsuyoshi Kawai

Chemistry - A European Journal -

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