Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Pierre Beaujean"'
Publikováno v:
Molecules, Vol 27, Iss 9, p 2770 (2022)
This contribution employs quantum chemistry methods to describe the variations of the second nonlinear optical responses of molecular switches based on benzazolo-oxazolidine (BOX) units, connected by π-linkers, along their successive opening/closing
Externí odkaz:
https://doaj.org/article/bb2970022f7848afba9117eab89c1c05
Autor:
Bethany R. Hood, Yovan de Coene, Afonso V. Torre Do Vale Froes, Claire F. Jones, Pierre Beaujean, Vincent Liégeois, Fraser MacMillan, Benoît Champagne, Koen Clays, John Fielden
Publikováno v:
Angewandte Chemie. 135
Electrochemically switched 2nd order non-linear optical responses have been demonstrated for the first time in polyoxometalates (POMs), with an arylimido-derivative showing a leading combination of high on/off contrast (94 %), high visible transparen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac477edcff092de6dba399591085b27d
https://doi.org/10.1002/ange.202215537
https://doi.org/10.1002/ange.202215537
Publikováno v:
The journal of physical chemistry. A. 126(41)
This work presents the theoretical background to evaluate two-photon absorption (2PA) cross-sections in the framework of simplified time-dependent density functional theory (sTD-DFT). Our new implementation allows the ultrafast evaluation of 2PA cros
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4c191fa89da8a8125b8ad2462382153
https://pubmed.ncbi.nlm.nih.gov/36201255
https://pubmed.ncbi.nlm.nih.gov/36201255
Publikováno v:
Beaujean, P, Sanguinet, L, Rodriguez, V, Castet, F & Champagne, B 2022, ' Multi-State Second-Order Nonlinear Optical Switches Incorporating One to Three Benzazolo-Oxazolidine Units : A Quantum Chemistry Investigation ', Molecules, vol. 27, no. 9, 2770 . https://doi.org/10.3390/molecules27092770
Molecules; Volume 27; Issue 9; Pages: 2770
Molecules; Volume 27; Issue 9; Pages: 2770
This contribution employs quantum chemistry methods to describe the variations of the second nonlinear optical responses of molecular switches based on benzazolo-oxazolidine (BOX) units, connected by π-linkers, along their successive opening/closing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dbd5647665c0cc590ceeba24dbf7cb4a
https://pure.unamur.be/ws/files/65621403/Molecules_22_2770_2022_.pdf
https://pure.unamur.be/ws/files/65621403/Molecules_22_2770_2022_.pdf
Autor:
Pierre Beaujean, Benoît Champagne
Publikováno v:
Inorganic chemistry. 61(4)
Owing to their odd order, second-order nonlinear optical (NLO) responses are very sensitive to symmetry. Therefore, within hyper-Rayleigh scattering (HRS) technique, the symmetry impacts the amplitude of the molecular responses, the HRS first hyperpo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::85387427a7cf608de8127351869277ff
https://pubmed.ncbi.nlm.nih.gov/35023732
https://pubmed.ncbi.nlm.nih.gov/35023732
Autor:
Vincent Rodriguez, Marc de Wergifosse, Laurie Lescos, Claire Tonnelé, Benoît R. Champagne, Pierre Beaujean, Luca Muccioli, Philippe Aurel, Mireille Blanchard-Desce, Frédéric Castet
Publikováno v:
Physical Chemistry Chemical Physics
Physical Chemistry Chemical Physics, Royal Society of Chemistry, 2021, 23 (41), pp.23643-23654. ⟨10.1039/D1CP03741B⟩
Physical Chemistry Chemical Physics, Royal Society of Chemistry, 2021, 23 (41), pp.23643-23654. ⟨10.1039/D1CP03741B⟩
Owing to their intense emission, low toxicity and solubility in aqueous medium, fluorescent organic nanoparticles (FONs) have emerged as promising alternatives to inorganic ones for the realization of exogenous probes for bioimaging applications. How
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::298a5d60e91dd5bd5eec3d1e4fd6912c
https://hal.archives-ouvertes.fr/hal-03457931
https://hal.archives-ouvertes.fr/hal-03457931
Publikováno v:
Beaujean, P, Champagne, B, Grimme, S & de Wergifosse, M 2021, ' All-Atom Quantum Mechanical Calculation of the Second-Harmonic Generation of Fluorescent Proteins ', The Journal of Physical Chemistry Letters, vol. 12, no. 39, pp. 9684-9690 . https://doi.org/10.1021/acs.jpclett.1c02911
Fluorescent proteins (FPs) are biotags of choice for second-harmonic imaging microscopy (SHIM). Because of their large size, computing their second-harmonic generation (SHG) response represents a great challenge for quantum chemistry. In this contrib
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6020f43343856a9d532befadc2ce831e
https://pubmed.ncbi.nlm.nih.gov/34590850
https://pubmed.ncbi.nlm.nih.gov/34590850
Autor:
Youssef Aidibi, Pierre Beaujean, Jean Quertinmont, Julien Stiennon, Maxime Hodée, Philippe Leriche, Jérôme Berthet, Stéphanie Delbaere, Benoît Champagne, Lionel Sanguinet
Publikováno v:
Aidibi, Y, Beaujean, P, Quertinmont, J, Stiennon, J, Hodée, M, Leriche, P, Berthet, J, Delbaere, S, Champagne, B & Sanguinet, L 2022, ' A molecular loaded dice : When the π conjugation breaks the statistical addressability of an octastate multimodal molecular switch ', Dyes and pigments, vol. 202, 110270 . https://doi.org/10.1016/j.dyepig.2022.110270
The elaboration of multichromophoric system which can undergo a reversible transformation over more than two different states can be easily performed by the covalent assembly of several identical switching subunits around a central node. However, the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1923154bd0e5e5c5373ba4492947d4f5
https://doi.org/10.1016/j.dyepig.2022.110270
https://doi.org/10.1016/j.dyepig.2022.110270
Autor:
Pierre Beaujean, Benoît Champagne, Lionel Sanguinet, Jean Quertinmont, Philippe Leriche, Youssef Aidibi, Julien Stiennon, Vincent Rodriguez
Publikováno v:
Quertinmont, J, Beaujean, P, Stiennon, J, Aidibi, Y, Leriche, P, Rodriguez, V, Sanguinet, L & Champagne, B 2021, ' Combining Benzazolo-Oxazolidine Twins toward Multi-state Nonlinear Optical Switches ', Journal of physical chemistry B, vol. 125, no. 15, pp. 3918-3931 . https://doi.org/10.1021/acs.jpcb.1c01962
Molecular switches are chemical compounds exhibiting the possibility of reversible transformations between their different forms accompanied by a modification in their properties. Among these, switching of multi-addressable Benzazolo-OXazolidines (BO
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c0fc3703ec1db13521f82f1944ff7281
https://pure.unamur.be/ws/files/60842828/J._Phys._Chem._B_125_3918_3931_2021_.pdf
https://pure.unamur.be/ws/files/60842828/J._Phys._Chem._B_125_3918_3931_2021_.pdf
Autor:
Janet Cusido, Vincent Rodriguez, Françisco M. Raymo, Frédéric Castet, Flavie Bondu, Jaume Garcia-Amorós, Aurélie Plaquet, Benoît Champagne, Pierre Beaujean
Publikováno v:
Journal of the American Chemical Society. 138:5052-5062
A combined experimental-theoretical investigation has revealed that oxazine-based compounds are multi-addressable, multi-state, and multi-functional molecular switches exhibiting contrasts of both linear and second-order nonlinear optical properties.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::43650e438d53e1a29542ad31d15142c2
https://doi.org/10.1021/jacs.5b13243
https://doi.org/10.1021/jacs.5b13243