Is it possible to maintain photomechanical properties of crystalline diarylethenes after thermal amorphization?

Autor: Maroua Louati, Sophie Barrau, Jean-François Tahon, Arnaud Brosseau, Marumi Takao, Michinori Takeshita, Rémi Métivier, Guy Buntinx, Stéphane Aloise

Publikováno v: Journal of Molecular Structure
Journal of Molecular Structure, 2022, Journal of Molecular Structure, 1261, pp.132857. ⟨10.1016/j.molstruc.2022.132857⟩
Journal of Molecular Structure, Elsevier, 2022, Journal of Molecular Structure, 1261, pp.132857. ⟨10.1016/j.molstruc.2022.132857⟩

International audience; The photomechanical properties of the photochromic 1,2-bis(2,4-dimethyl-5-phenyl-3-thienyl)perfluorocyclopentene (DTE) crystals, largely documented since the discovery by Irie et al. of its reversible photoswitching of crystal

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a96cee82be7bb4a97152d62258366842
https://doi.org/10.1016/j.molstruc.2022.132857

Cyclization Dynamics and Competitive Processes of Photochromic Perfluorocyclopentene Dithienylethylene in Solution

Autor: Stéphane Aloïse, Guy Buntinx, Stéphanie Delbaere, Michinori Takeshita, Ismail Hamdi, Amit K. Tiwari

Publikováno v: ChemPhysChem
ChemPhysChem, Wiley-VCH Verlag, 2020, 21 (19), pp.2223-2229. ⟨10.1002/cphc.202000516⟩
ChemPhysChem, 2020, 21 (19), pp.2223-2229. ⟨10.1002/cphc.202000516⟩

International audience; Time-resolved absorption spectroscopy measurements were applied to study the dynamics of photochromic 1,2-Bis(2,4dimethylthiophene-3-yl)perfluoro-cyclopentene (DMTPF) in chloroform including antiparallel conformer ring-closure

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba225821eada050f589d58965c49db13
https://hal.archives-ouvertes.fr/hal-02999524

Unraveling Ultrafast Dynamics of the Photoswitchable Bridged Dithienylethenes Under Structural Constraints

Autor: Rikiya Yamashita, Michinori Takeshita, Ken-Ichi Muraoka, Guy Buntinx, Olivier Poizat, Stéphane Aloïse, Ismail Hamdi, Aurélie Perrier, Stéphanie Delbaere

Publikováno v: Physical Chemistry Chemical Physics
Physical Chemistry Chemical Physics, Royal Society of Chemistry, 2019, 21 (12), pp.6407-6414. ⟨10.1039/c8cp07100d⟩
Physical Chemistry Chemical Physics, Royal Society of Chemistry, 2019, 21 (12), pp.6407-6414. ⟨10.1039/C8CP07100D⟩
Physical Chemistry Chemical Physics, 2019, 21 (12), pp.6407-6414. ⟨10.1039/c8cp07100d⟩
Physical Chemistry Chemical Physics, 2019, 21 (12), pp.6407-6414. ⟨10.1039/C8CP07100D⟩

International audience; Excited state dynamics of constrained photochromic benzodithienylethenes were adressed by considering the bridging with polyether chains (from x=4 to 6 units) at the ortho and meta positions of the aryl group, noticed DTE-ox a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc25a94d5d9c2cfed46692d542ec41c6
https://hal.archives-ouvertes.fr/hal-03036829/document

Can betaine pyridinium derivatives be used to control the photoejection of cation?

Autor: Isabelle Leray, Aurélie Perrier, Ismail Hamdi, Stéphane Aloïse, C. Azarias, Amit K. Tiwari, Guy Buntinx, Y. Ruan

Publikováno v: Physical Chemistry Chemical Physics
Physical Chemistry Chemical Physics, 2016, 18, pp.15384-15393. ⟨10.1039/c6cp01755j⟩
Physical Chemistry Chemical Physics, Royal Society of Chemistry, 2016, 18, pp.15384-15393. ⟨10.1039/c6cp01755j⟩

Using a combination of advanced DFT/TDDFT calculations together with ultrafast and stationary spectroscopies we have investigated the photochemistry and cationic complexation ability of 1-pyridinio-benzimidazolate (PyB) and analogs substituted by 15-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::edfa40ac32c23f2f97f0f4857eb2dab6
https://doi.org/10.1039/c6cp01755j

The role of charge transfer states in deactivation of the electronic excitation energy of spirooxazines

Autor: Anatoly V. Metelitsa, Olivier Poizat, I. V. Dorogan, Guy Buntinx, Vladimir Lokshin, V. I. Minkin

Publikováno v: Доклады Академии Наук / Doklady Chemistry
Доклады Академии Наук / Doklady Chemistry, 2011, 441, pp.338-342. ⟨10.1134/S0012500811110127⟩
Доклады Академии Наук / Doklady Chemistry, MAIK Nauka/Interperiodica, 2011, 441, pp.338-342. ⟨10.1134/S0012500811110127⟩

338 Photochromic compounds, characterized by reversible photoinduced structural changes, are prom ising candidates for use in different areas of molecular electronics, photonics, and spintronics. Among the photochromic compounds, spirocyclic molecula

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::daa3a710e6e11096572f959094f8e3cd
https://doi.org/10.1134/s0012500811110127