Publications

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

Chimie-Physique

Structural variations in a family of orthodialkoxyarenes organogelators

A series of low mass organic gelators (LMOGS) 1 to 6 whose chemical structures have in common an orthodialkoxyarene feature was prepared in order to compare the shape of their fibrillar network as investigated by small-angle neutron scattering (SANS…

Pierre Terech, Gilles Clavier, Henri Bouas-Laurent, Jean-Pierre Desvergne, Bruno Demé, Jean-Luc Pozzo

Journal of Colloid and Interface Science - 2006

Chimie

Evidence of multipolar excitations in surface enhanced Raman scattering

Visible and near-infrared extinction spectra of regular arrays of gold nanorods display several bands depending on polarization of the electromagnetic incident field. When setting the incident field perpendicular to the nanorod axis ͑transverse…

Guillaume Laurent, N. Félidj, J. Aubard, G. Lévi, J R Krenn, A. Hohenau, G. Schider, A. Leitner, F R Aussenegg

Physical Review B - 2005

Chimie

Synthesis, molecular structure and electrochemical properties of the star-shaped dinuclear complexes [Ru2(η6-p-Me–C6H4-iPr)2(μ2-S-p-C6H4–C4H3S)3]+ and [Rh2(η5-C5Me5)2(μ2-S-p-C6H4–C4H3S)3]+

Frédéric Chérioux, Bruno Therrien, Clément Comminges, Georg Süss-Fink

Journal of Organometallic Chemistry - 2005