J
Jean-Paul Guégan
Researcher at University of Rennes
Publications - 21
Citations - 820
Jean-Paul Guégan is an academic researcher from University of Rennes. The author has contributed to research in topics: Bipyridine & Ionic liquid. The author has an hindex of 8, co-authored 20 publications receiving 738 citations.
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Stabilization of alpha-chymotrypsin by ionic liquids in transesterification reactions.
TL;DR: Results show that ionic liquids are excellent enzyme-stabilizing agents and reaction media for clean biocatalysis in non-conventional conditions.
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Synthesis, linear, and quadratic-nonlinear optical properties of octupolar D3 and D2d bipyridyl metal complexes
Olivier Maury,Lydie Viau,Katell Sénéchal,Brigitte Corre,Jean-Paul Guégan,Thierry Renouard,Isabelle Ledoux,Joseph Zyss,Hubert Le Bozec +8 more
TL;DR: It is demonstrated that the optical and nonlinear optical (NLO) properties are strongly influenced by the symmetry of the complexes, the nature of the ligands (donor endgroups and pi linkers), and the natureof the metallic centers.
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Synthesis, Structural Studies, Theoretical Calculations, and Linear and Nonlinear Optical Properties of Terpyridyl Lanthanide Complexes: New Evidence for the Contribution of f Electrons to the NLO Activity
Katell Senechal-David,Anne Hémeryck,Nicolas Tancrez,Loïc Toupet,J. A. Gareth Williams,Isabelle Ledoux,Joseph Zyss,Abdou Boucekkine,Jean-Paul Guégan,Hubert Le Bozec,Olivier Maury +10 more
TL;DR: The quadratic hyperpolarizability coefficient beta, measured by the harmonic light scattering (HLS) technique, is clearly dependent on the nature of the metal, and a careful examination of the particular case of yttrium unambiguously confirms the contribution of metal f electrons to the NLO activity.
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Glucan-like synthetic oligosaccharides: iterative synthesis of linear oligo-β-(1,3)-glucans and immunostimulatory effects
Frank Jamois,Vincent Ferrières,Jean-Paul Guégan,Jean-Claude Yvin,Daniel Plusquellec,Vaclav Vetvicka +5 more
TL;DR: Results suggest that the synthetic oligosaccharides have similar stimulatory effects as natural beta-(1,3)-glucans.
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Design and synthesis of 4,4′-π-conjugated[2,2′]-bipyridines: a versatile class of tunable chromophores and fluorophores
Olivier Maury,Jean-Paul Guégan,Thierry Renouard,Adam Hilton,Philippe Dupau,Nicolas Sandon,Loïc Toupet,Hubert Le Bozec +7 more
TL;DR: In this paper, a series of 4,4′-disubstituted [2,2′]-bipyridines, featuring π-conjugated substituents such as donor-(acceptor-) substituted styryl, thienylvinyl, phenylimino and phenylazo groups, have been synthesized.