Author "Le Poul, Pascal"

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1. Synthesis, photophysical and nonlinear optical properties of [1,2,5]oxadiazolo[3,4-b]pyrazine-based linear push-pull systems [2021]

  • Verbitskiy, Egor V., Achelle, Sylvain, Bureš, Filip, le Poul, Pascal, Barsella, Alberto, Kvashnin, Yuriy A., Rusinov, Gennady L., Guen, Françoise Robin-le, Chupakhin, Oleg N., and Charushin, Valery N.
  • In Journal of Photochemistry & Photobiology, A: Chemistry 1 January 2021 404

2. Nonlinear optical properties of pyrimidine chromophores [2020]

  • Fecková, Michaela, le Poul, Pascal, Bureš, Filip, Robin-le Guen, Françoise, and Achelle, Sylvain
  • In Dyes and Pigments November 2020 182

3. Insights into the radical-radical and radical-substrate dimerization processes for substituted phenylmethylenepyrans [2019]

  • Wojcik, Laurianne, López, Isidoro, Gauthier, Sébastien, Cabon, Nolwenn, Le Poul, Pascal, Gloaguen, Frédéric, and Le Poul, Nicolas
  • In Electrochimica Acta 10 May 2019 305:304-311

4. Electron-Withdrawing Substituted Quinazoline Push-Pull Chromophores: Synthesis, Electrochemical, Photophysical and Second-Order Nonlinear Optical Properties [2020]

  • Moshkina, Tatiana N., Le Poul, Pascal, Barsella, Alberto, Pytela, OldAich, BureA , Filip, Robin-Le Guen, Francoise, Achelle, Sylvain, Nosova, Emiliya V., Lipunova, Galina N., and Charushin, Valery N.
  • European Journal of Organic Chemistry. Sept 7, 2020, Vol. 2020 Issue 33, p5445, 10 p.

5. Branching effect on the linear and nonlinear optical properties of styrylpyrimidinesElectronic supplementary information (ESI) available. See DOI: 10.1039/c9cp06476a [2020]

  • Kournoutas, Fotis, Fihey, Arnaud, Malval, Jean-Pierre, Spangenberg, Arnaud, Fecková, Michaela, le Poul, Pascal, Katan, Claudine, Robin-le Guen, Françoise, Bureš, Filip, Achelle, Sylvain, and Fakis, Mihalis
  • Physical chemistry chemical physics. 22(7):4165-4176

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7. Synthesis, photophysical and nonlinear optical properties of [1, 2, 5]oxadiazolo[3, 4-b]pyrazine-based linear push-pull systems [2021]

  • Verbitskiy, Egor V., Achelle, Sylvain, Bureš, Filip, le Poul, Pascal, Barsella, Alberto, Kvashnin, Yuriy A., Rusinov, Gennady L., Guen, Françoise Robin-le, Chupakhin, Oleg N., and Charushin, Valery N.
  • Journal of photochemistry and photobiology A. 404

8. Influence of Donor-Substituents on Triphenylamine Chromophores Bearing Pyridine Fragments [2019]

  • Tydlitat, JiAi, Feckova, Michaela, le Poul, Pascal, Pytela, OldAich, Klikar, Milan, Rodriguez-Lopez, Julian, Robin-le Guen, Francoise, and Achelle, Sylvain
  • European Journal of Organic Chemistry. March 7, 2019, Vol. 2019 Issue 9, p1921, 10 p.

9. Push–Pull Derivatives Based on 2,4′-Biphenylene Linker with Quinoxaline, [1,2,5]Oxadiazolo[3,4- B ]Pyrazine and [1,2,5]Thiadiazolo[3,4- B ]Pyrazine Electron Withdrawing Parts. [2022]

  • Verbitskiy, Egor V., le Poul, Pascal, Bureš, Filip, Achelle, Sylvain, Barsella, Alberto, Kvashnin, Yuriy A., Rusinov, Gennady L., and Charushin, Valery N.
  • Molecules; Jul2022, Vol. 27 Issue 13, p4250-N.PAG, 16p
Subjects
QUINOXALINES, INTRAMOLECULAR charge transfer, PYRAZINES, and STOKES shift
Abstract
A series of novel V-shaped quinoxaline, [1,2,5]oxadiazolo[3,4-b]pyrazine and [1,2,5]thiadiazolo[3,4-b]pyrazine push–pull derivatives with 2,4′-biphenylene linker were designed and their electrochemical, photophysical and nonlinear optical properties were investigated. [1,2,5]Oxadiazolo[3,4-b]pyrazine is the stronger electron-withdrawing fragment as shown by electrochemical, and photophysical data. All compounds are emissive in a solid-state (from the cyan to red region of the spectrum) and quinoxaline derivatives are emissions in DCM solution. It has been found that quinoxaline derivatives demonstrate important solvatochromism and extra-large Stokes shifts, characteristic of twisted intramolecular charge transfer excited state as well as aggregation induced emission. The experimental conclusions have been justified by theoretical (TD-)DFT calculations. [ABSTRACT FROM AUTHOR]

10. Nonlinear optical properties of pyrimidine chromophores [2020]

  • Feckova, Michaela, le Poul, Pascal, Bures, Filip, Robin-le Guen, Francoise, and Achelle, Sylvain
  • Dyes and Pigments. Nov, 2020, Vol. 182

11. New D-π-A-conjugated organic sensitizers based on α-pyranylidene donors for dye-sensitized solar cells [2017]

  • Ferreira, Emilie, Le Poul, Pascal, Cabon, Nolwenn, Caro, Bertrand, Robin-Le Guen, Françoise, Pellegrin, Yann, Planchat, Aurélien, and Odobel, Fabrice
  • Tetrahedron letters. 58(10):995-999

12. Electron transfer properties of mono- and diferrocenyl based Cu complexes attached as self-assembled monolayers on gold electrodes by “self-induced” electroclick [2013]

  • Orain, Christophe, Le Poul, Pascal, Le Mest, Yves, and Le Poul, Nicolas
  • In Journal of Electroanalytical Chemistry 1 December 2013 710:48-58

13. Synthesis and characterization of novel nitroxide organometallic Fischer-type carbene complexes [2013]

  • Le Poul, Pascal, Caro, Bertrand, Cabon, Nolwenn, Robin-Le Guen, Françoise, and Golhen, Stéphane
  • In Journal of Organometallic Chemistry 15 November 2013 745-746:57-63

14. Photophysics of 9,9-dimethylacridan substituted phenylstyrylpyrimidines exhibiting long lived intramolecular charge transfer fluorescence and aggregation induced emission characteristics [2021]

  • Fecková, Michaela, Kalis, Ioannis Konstantinos, Roisnel, Thierry, Le Poul, Pascal, Pytela, Oldřich, Klikar, Milan, Le Guen, Françoise Robin, Bureš, Filip, Fakis, Mihalis, Achelle, Sylvain, Institut des Sciences Chimiques de Rennes (ISCR), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Centre National de la Recherche Scientifique (CNRS), University of Patras [Patras], University of Pardubice, University of Patras, School of Medicine, and HOLED, Région Bretagne
  • Chemistry-A European Journal
    Chemistry-A European Journal, Wiley-VCH Verlag, 2021, 27 (3), pp.1145-1159. ⟨10.1002/chem.202004328⟩
Subjects
Dual emission, Intramolecular charge transfer, Pyrimidine, Aggregation induced emission, and [CHIM]Chemical Sciences
Abstract
International audience; Six pyrimidine-based push-pull systems substituted at positions C2 and C4/6 with phenylacridan and styryl moieties, employing methoxy or N,N-diphenylamino donors, have been designed and synthesized through cross-coupling and Knoevenagel reactions. X-ray analysis confirmed that the molecular structure featured the acridan moiety arranged perpendicularly to the residual π system. Photophysical studies revealed significant differences between the methoxy and N,N-diphenylamino chromophores. Solvatochromic studies revealed that the methoxy derivatives showed dual emission in polar solvents. Time-resolved spectroscopy revealed that the higher energy band involved very fast (

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20. Ferrocenyl and pyridyl methylenepyrans as potential precursors of organometallic electron-rich extended bipyrans: Synthesis, characterization and crystal structure [2010]

  • Ba, Fatou, Robin-Le Guen, Francoise, Cabon, Nolwenn, Le Poul, Pascal, Golhen, Stéphane, Le Poul, Nicolas, and Caro, Bertrand
  • In Journal of Organometallic Chemistry 2010 695(2):235-243

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