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Affichage des publications 651 à 660 sur 980 au total

Chimie organique

2-Substituted vs 4-substituted-9,9′-spirobifluorene host materials for green and blue phosphorescent OLEDs: a structure-property relationship study

We report a structure-property relationship study of four 9,9′-spirobifluorene (SBF) derivatives (4-5Pm-SBF, 2-5Pm-SBF, 4-Ph-SBF and 2-Ph-SBF), substituted with either phenyl or pyrimidine at the \C2\ or \C4\ position of the \SBF\ core. Structural,…

Sebastien Thiery, Céline Declairieux, Denis Tondelier, Gijun Seo, Bernard Geffroy, Olivier Jeannin, Rémi Métivier, Joëlle Rault-Berthelot, Cyril Poriel

Tetrahedron -

Chimie organique

9,9'-Spirobifluorene and 4-phenyl-9,9'- spirobifluorene: pure hydrocarbon small molecules as hosts for efficient green and blue PhOLEDs

We report herein a new pure hydrocarbon material, 4-phenyl-9,9′-spirobifluorene (4-Ph-SBF), with a high triplet energy level (ET: 2.77 eV) as a host for blue phosphorescent organic light-emitting diodes (PhOLEDs). Structural, thermal,…

Sebastien Thiery, Denis Tondelier, Ce Declairieux, Seo Gijun, Bernard Geffroy, Olivier Jeannin, Joëlle Rault-Berthelot, Rémi Métivier, Cyril Poriel

Journal of Materials Chemistry C -

ou physique

Visible-emitting hybrid sol–gel materials comprising lanthanide ions: thin film behaviour and potential use as phosphors for solid-state lighting

The synthesis and characterization, as well as the film-forming and luminescent properties of four visible-emitting hybrid organic-inorganic sol-gel materials are reported. They show thermal stability up to 165°C. Deposition conditions were…

Xiaoguang Huang, Gaël Zucchi, Jacqueline Tran, Robert B. Pansu, Arnaud Brosseau, Bernard Geffroy, François Nief

Journal of new materials for electrochemical systems -

Matériaux

A spiral designed surface based on amino-perylene grafted polyacrylic acid

This communication shows the possibility to induce spontaneous special surface organisation by means of grafting f luorescent aminobenzo[g,h,i]perylene derivative onto surface grown polyacrylic chains

Elena Celia, Sonia Amigoni, Elisabeth Taffin de Givenchy, Grégory Pieters, Anne Gaucher, Damien Prim, Jean-Frédéric Audibert, Rachel Méallet-Renault, Robert Pansu, Frédéric Guittard

Chemical Communications -

ou physique

Alternated bimetallic [Ru–M] (M = Fe2+, Zn2+) coordination polymers based on [Ru(bpy)3]2+units connected to bis-terpyridine ligands: synthesis, electrochemistry and photophysics in solution or in thin film on electrodes

Two alternated bimetallic Ru–Fe and Ru–Zn coordination polymers, [{RuII(bpy)2(L2)MII}n]4n+ (M = Fe2+, Zn2+), were synthesized using the [Ru(bpy)2(L2)]2+ (bpy = 2,2′ bipyridine) complex as a building block, in which L2 is a bipyridine ligand…

Jean Lombard, D. Amilan Jose, Carmen E. Castillo, Robert Pansu, Jérôme Chauvin, Alain Deronzier, Marie-Noëlle Collomb

Journal of new materials for electrochemical systems -

Science des matériaux

Nanoparticle Organization through Photoinduced Bulk Mass Transfer

A series of dipolar triphenylaminoazo derivatives, with largely distinct charge transfer and glass transition temperatures, has been synthesized. Their photomigration capability in the solid state to form surface relief gratings (SRGs) under…

Kristen E. Snell, Nicolas Stephant, Robert B. Pansu, Jean-Frederic Audibert, Francois Lagugne-Labarthet, Eléna Ishow

Langmuir -

Physique Nucléaire Expérimentale

Intrinsic evaluation of neutron/gamma discrimination in plastic scintillators

This paper is devoted to characterizing plastic scintillators with neutron/gamma discrimination abilities and understanding experimentally the photophysical processes downstream. This experimental work is divided into two main studies, neutron…

Pauline Blanc, Matthieu Hamel, Licinio Rocha, Robert Bernard Pansu, Fabrice Gobert, Isabelle Lampre, Stéphane Normand

IEEE Transactions on Nuclear Science -

ou physique

A multifunctional photoswitch: 6π electrocyclization versus ESIPT and metalation

A terthiazole-based molecular switch associating 6π electrocyclization, excited state intramolecular proton transfer (ESIPT), and strong metal binding capability was prepared. The photochemical and photophysical properties of this molecule and of…

J. Guérin, A. Léaustic, S. Delbaere, J. Berthet, R. Guillot, C. Ruckebusch, R. Métivier, K. Nakatani, M. Orio, M. Sliwa, Pei Yu

Chemistry - A European Journal -

Chimie organique

Ultra-sensitive and selective Hg2+ chemosensors derived from substituted 8-hydroxyquinoline analogues

Novel analogues of 8-hydroxyquinoline with phosphinate or thiophosphinate functions and styryl fluorophores in the para position to the nitrogen atom were prepared via multi-step syntheses, using phosphorylation and Wittig coupling reactions. A…

Jeremy Bell, Issa Samb, Patrick Y. Toullec, Olivier Mongin, Mireille Blanchard-Desce, Veronique Michelet, Isabelle Leray

New Journal of Chemistry -

Chimie

Synthesis of Nucleo-aminooxy Acids Derivatives

Nucleobase-functionalized peptides have attracted increasing interest because of their well-ordered secondary structures and stability towards enzymatic degradations. We have designed and synthesized nucleoaminooxy acids as novel building blocks of…

Juan Xie, Olivier Noel

Synthesis -

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