Výsledky vyhledávání - "J.P. Lere-Porte"

Insights into the polymerization kinetics of some α-silylated thiophene oligomers

Autor: M. Wong Chi Man, Joël J. E. Moreau, Philippe Hapiot, J.P. Lere-Porte, Laurent Gaillon, Pierre Audebert

Publikováno v: Journal of Electroanalytical Chemistry. 435:85-94

Oxidation of several silylthiophene oligomers has been studied in dichloromethane and acetonitrile by cyclic voltammetry. Detailed mechanistic studies show that the oxidative coupling of silyloligothiophenes involves the carbon-carbon bond formation

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8aafff5ebd5430d33d4a45eb14eada98
https://doi.org/10.1016/s0022-0728(97)00116-2

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Solvent effects on the polymerization kinetics of some α-silylated thiophene oligomers. Special influence of the α-silyl group

Autor: M. Wong Chi Man, Joël J. E. Moreau, Philippe Hapiot, J.P. Lere-Porte, Pierre Audebert, L. Gaillon

Publikováno v: Synthetic Metals. 72:129-134

Oxidation of several silylthiophene oligomers has been studied in aprotic solvents by cyclic voltammetry. Reversible voltammograms were obtained at low or very high scan rates depending on the nature of the oligomer (from 0.05 V s −1 for 5,5‴-bis

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2ce5051fff7a9b6f538cb49639f88c02
https://doi.org/10.1016/0379-6779(94)02329-w

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Characterization from XPS, FT-IR and Raman spectroscopies of films of poly(p-phenylene) prepared by electropolymerization of benzene dissolved in ketyl pyridinium chloride-AlCl3 melting salt

Autor: C. Chorro, Geneviève Pfister-Guillouzo, Guy Louarn, Jean-Louis Sauvajol, J. Petrissans, Serge Lefrant, J.P. Lere-Porte, Danièle Gonbeau, M. Radi

Publikováno v: Synthetic Metals. 59:141-149

Films of poly( p -phenylene) have been synthesized by electrochemical oxidation of benzene dissolved in ketyl pyradinium chloride-AlCl 3 (1:2) melting salt. These films have been characterized from X-ray photoelectron, Raman, photoluminescence and FT

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d6b65bfde58bac744908055da884032e
https://doi.org/10.1016/0379-6779(93)91022-t

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Sample dependence of Raman spectrum on polythiophene films

Autor: C. Chorro, C Benoit, G. Poussigue, Jean-Louis Sauvajol, J.P. Lere-Porte

Publikováno v: Synthetic Metals. 41:1237-1242

A detailed analysis of the sample dependence of Raman spectrum on polythiophene films is reported. In order to describe the Raman results a calculation of the dependence of the Raman spectrum with the conjugation length has been made. From the agreme

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f47b418a7fd28d0e625dcbff421d392e
https://doi.org/10.1016/0379-6779(91)91595-2

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Optimisation of the Electrosynthesis of Polythiophene and Polyselenophene Films

Autor: J. Petrissans, C. Chorro, Bertil Moukala, J.P. Lere-Porte

Publikováno v: Molecular Crystals and Liquid Crystals Incorporating Nonlinear Optics. 187:199-205

Conditions were improved in the electrochemical preparation of polythiophene and polyselenophene films in order to increase the conductivity and stability of doped films and to improve the reproducibility of the synthesis. The effect of the following

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f55072af1e4ae9ce90c1e6bb241ccd68
https://doi.org/10.1080/00268949008036043

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Resonant Raman spectra and photoluminescence in polythiophene

Autor: J.P. Lere-Porte, J. Petrissans, J. L. Sauvajol, B. Moukala, C. Chorro, D. Chenouni

Publikováno v: Synthetic Metals. 38:1-12

Resonant Raman scattering spectra and photoluminescence studies carried out on electrochemically prepared films on polythiophene of different ‘quality’ are reported. The ‘quality’ of the films [defined in terms of degree of polymerization ( N

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a342d10c38917b41e9ef1446f775e9f4
https://doi.org/10.1016/0379-6779(90)90063-q

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Approche théorique de la corrélation 'fréquence δ(CH2-structure' mise en évidence dans les dérivés carbonylés

Autor: J. Petrissans, J.P. Lere-Porte, Catherine Maury

Publikováno v: Journal of Molecular Structure. 250:107-109

We show that correlation between the methylene bending mode frequency of a molecule and the orientation of a CO bond adjacent to this methylene generally results from changes in the bending mode force constant.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f42b704f9f0c581fe12cd05dbc052989
https://doi.org/10.1016/0022-2860(91)80125-n

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Analyse structurale des halogenopropanones

Autor: Alain Bonniol, Catherine Maury, J.P. Lere-Porte, J. Petrissans

Publikováno v: Journal of Molecular Structure. 159:217-227

Methylene bending mode analysis (1400–1500 cm −1 region) and dipole moment determinations are carried out in the dissolved state (solvent CCl 4 ) for fluoropropanone (I) and 1,3-difluoropropanone (II). The results are consistent with the existenc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7c5bb8537a5d6b15cd70c7b6781c337f
https://doi.org/10.1016/0022-2860(87)80040-6

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