Publications

ou physique

Synthesis, characterization and nonlinear optical (NLO) properties of a push-pull bisboronate chromophore with a potential electric field induced NLO switch

A new bisboronate with five six-membered ring heterobicycles was prepared by reaction of [2-(2-hydroxy-4-diethylaminobenzylidene)amino]-5-nitroaminophenol and 1,4-phenyldiboronic acid, and its quadratic nonlinear optical (NLO) response was compared…

Jean François Lamère, Pascal G. Lacroix, Norberto Farfan, Jose Maria Rivera, Rosa Santillan, Keitaro Nakatani

Journal of Materials Chemistry - 2006

ou physique

Analysis of the gelation process of hybrid silica-zirconia and silica-titania gels using two different grafted electroactive probes

Several conditions for the sol-gel polymerisation of hybrid silica-zirconia and silica-titania have been studied using specially tailored electrochemical probes. One of the probes has been designed to bind to the silica backbone, while the other has…

Pierre Audebert, Fabien Miomandre, Saïd Sadki, Sébastien Sallard

Journal of electroanalytical chemistry and interfacial electrochemistry - 2006

Chimie-Physique

Donor-Acceptor-Donor Tetrazines Containing a Ferrocene Unit: Synthesis, Electrochemical and Spectroscopic Properties

Donor-acceptor-donor tetrazines containing ferrocene moieties and phenyl unit as a ð-bridge have been synthesized and characterized. UV-vis spectroscopic and cyclic voltamperometric results indicate sizable intramolecular charge transfer…

Izabela Janowska, Fabien Miomandre, Gilles Clavier, Pierre Audebert, Janusz Zakrzewski, Khuyen Hoang Thi, Isabelle Ledoux-Rak

Journal of Physical Chemistry A - 2006

ou physique

Synthesis and NLO properties of 4-(4H-chalcogenopyran-4-ylidene and 4H-chalcogenochromen-4-ylidene)-1-(phenylthio)but-2-enylidene complexes - Electronic influence of the carbene fragment

The synthesis of 4-(4H-chalcogenopyran-4-ylidene and 4H-chalcogenochromen-4-ylidene)-1-(phenylthio)but-2-enyl-idene complexes is described and their non-linear optical (NLO) properties have been investigated (as mu beta by EFISH). NMR studies and X…

Nadège Faux, Françoise Robin-Le Guen, Pascal Le Poul, Bertrand Caro, Keitaro Nakatani, Eléna Ishow, Stéphane Golhen

European Journal of Inorganic Chemistry - 2006

ou physique

Large quadratic nonlinear optical efficiencies in pseudosymmetric streptocyanine dyes

The quadratic (proportional to E-2) nonlinear optical (NLO) properties of pseudosymmetric organic cations are investigated. These chromophores belong to a family of highly polarizable streptocyanine dyes built in two steps by amination of their…

Valérie Guieu, Corinne Payrastre, Yves Madaule, Sonia Garcia-Alonso, Pascal G. Lacroix, Keitaro Nakatani

Chemistry of Materials - 2006

Chimie-Physique

Synthesis of Novel Rod-Shaped and Star-Shaped Fluorescent Phosphane Oxides - Nonlinear Optical Properties and Photophysical Properties

The design of a new class of fluorophores is presented. Some push–pull chromophores (D–π–A) containing polyphenylethynyl units and a phosphane oxide moiety were efficiently prepared from common intermediates. Straightforward syntheses gave novel one…

Minh-Huong Ha-Thi, Vincent Souchon, Abdelwaheb Hamdi, Rémi Métivier, Valérie Alain, Keitaro Nakatani, Pascal G. Lacroix, Jean-Pierre Genêt, Véronique Michelet, Isabelle Leray

Chemistry - A European Journal - 2006

Autre

Effects of DNA on the Growth and Optical Properties of Luminescent Organic Microcrystals

The reprecipitation method, which is a solvent-exchange process, was used to prepare free-standing microcrystals from an organic fluorescent dye, 4-n-octylamino-7-nitrobenz-2-oxa-1,3-diazole. Calf thymus DNA was introduced as an additive into the…

Liliana Bîrla, Franck Bertorelle, Fernanda Rodrigues, Sophie Badré, Robert Bernard Pansu, Suzanne Fery-Forgues

Langmuir - 2006

Sciences pharmaceutiques

Etude et Imagerie de la polymerisation de l'actine

L'objet de l'étude présentée ici est le cytosquelette d'actine. Cet arrangement polymère dynamique est très impliqué à la fois dans la morphologie cellulaire mais aussi dans les phénomènes d'adhérence et de motilité cellulaires. La perturbation de…

Jean-Alexis Spitz

Chimie-Physique

Second-Harmonic Generation within the P212121 Space Group, in a Series of Chiral (Salicylaldiminato)tin Schiff Base Complexes

A series of 10 (2-11) new chiral (salicylaldiminato)tin Schiff base complexes obtained from the Schiff base condensation of 4-(diethylamino)salicylaldehyde and various amino acids, in the presence of diphenyltin oxide, is reported together with the…

José Maria Rivera, Horacio Reyes, Armando Cortés, Rosa Santillan, Pascal G. Lacroix, Christine Lepetit, Keitaro Nakatani, Norberto Farfan

Chemistry of Materials - 2006

Polymères

Fluorescence of molecular micro- and nanocrystals prepared with Bodipy derivatives

Trimesitylbodipy (TMB), a new 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene derivative with bulky side groups, was synthesized in order to develop nanostructured fluorescent devices. Fluorescence properties of TMB were studied in dichloromethane, in…

Sophie Badré, Virginie Monnier, Rachel Méallet-Renault, Cécile Dumas-Verdes, Elena Yu. Schmidt, Al'Bina I. Mikhaleva, Guillaume J. Laurent, Georges Levi, Alain Ibanez, Boris A. Trofimov, Robert Bernard Pansu

Journal of Photochemistry and Photobiology A: Chemistry - 2006