Crystal structure of 2-oxo-2H-chromen-7-yl 4-fluorobenzoate

Autor: Akoun Abou, Jules Yoda, Abdoulaye Djandé, Stéphane Coussan, T. Jérémie Zoueu

Publikováno v: Acta Crystallographica Section E: Crystallographic Communications, Vol 74, Iss 5, Pp 761-765 (2018)

In the title compound, C16H9FO4, (I), the benzene ring is oriented at an acute angle of 59.03 (15)° relative to the coumarin plane (r.m.s deviation = 0.009 Å). This conformation of (I) is stabilized by an intramolecular C—H...O hydrogen bond, whi

Externí odkaz: https://doaj.org/article/aac1069b99b3498eb83560842ca6c2cc

Clathrate hydrates FTIR spectroscopy to understand cometary ices

Autor: Natalia Esteves, Aurélie Guilbert-Lepoutre, Arnaud Desmedt, Christian Aupetit, Frédéric Adamietz, Stéphane Coussan, Gabriel Tobie, Erwan Le Menn

Comet nuclei, when stored in the transneptunian region, are subject to heating at temperatures from 30 to 50 K over the age of the solar system. The timescale for sublimated volatiles to escape the objects at these temperatures is long though [1], so

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bb023f6685807f7c7ade3b9d4435430d
https://doi.org/10.5194/epsc2022-498

Chloroform–nitrogen aggregates: Upshifted CH and downshifted CCl stretching vibrations observed by matrix isolation and jet expansion infrared spectroscopy

Autor: Stéphane Coussan, Sönke Oswald

Publikováno v: Low Temperature Physics
Low Temperature Physics, 2019, ⟨10.1063/1.5103257⟩
Low Temperature Physics, American Institute of Physics, 2019, ⟨10.1063/1.5103257⟩
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Scopus-Elsevier

Aggregates of chloroform with nitrogen are studied by broad band Fourier transform infrared spectroscopy in neon, argon and nitrogen cryomatrices as well as supersonic jet expansions. The CH stretching vibration v1 shows spectral blue-shifting upon s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::06a26e79b0c80feaf96a8a4f87a85682
https://doi.org/10.1063/1.5103257

Infrared matrix-isolation and theoretical studies of interactions between CH3I and water

Autor: Joëlle Mascetti, Hanaa Houjeij, Anne Cecile Gregoire, Laurent Cantrel, Stéphane Coussan, Sonia Taamalli, Sophie Sobanska, Christian Aupetit, Florent Louis

Publikováno v: Journal of Molecular Structure
Journal of Molecular Structure, Elsevier, 2021, pp.130342. ⟨10.1016/j.molstruc.2021.130342⟩
Réunion Plénière GDR Edifices moléculaires isolés et environnés, GDR EMIE
Réunion Plénière GDR Edifices moléculaires isolés et environnés, GDR EMIE, Oct 2020, ILE D'OLÉRON, France
Réunion plénière du GDR EMIE
Réunion plénière du GDR EMIE, Oct 2020, Saint Pierre d'Oléron, France
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Réunion Plénière GDR Edifices moléculaires isolés et environnés, GDR EMIE, 2020, ILE D'OLÉRON, France
Journal of Molecular Structure, 2021, 1236, pp.130342. ⟨10.1016/j.molstruc.2021.130342⟩
Journal of Molecular Structure, Elsevier, 2021, 1236, pp.130342. ⟨10.1016/j.molstruc.2021.130342⟩

International audience; Gaseous iodomethane are naturally emitted in the atmosphere over oceans through the algae and phytoplankton activities. The fate of naturally emitted iodomethane is of great interest because of the oxidizing properties of iodi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c62448546c43b7c5bab3d956fb85376
https://hal.archives-ouvertes.fr/hal-03183391

Spectral fluctuation in SERS spectra of benzodiazepin molecules: The case of oxazepam

Autor: Katharina Gratzer, Trang N. T. Phan, Cédric Pardanaud, David Bergé-Lefranc, Denis Machon, Alexis Forestier, Stéphane Coussan, Virginie Hornebecq, Alexandre Merlen

Publikováno v: Journal of Raman Spectroscopy
Journal of Raman Spectroscopy, Wiley, 2020, 51 (11), pp.2192-2198. ⟨10.1002/jrs.5972⟩
Journal of Raman Spectroscopy, 2020, 51 (11), pp.2192-2198. ⟨10.1002/jrs.5972⟩

International audience; The surface‐enhanced Raman spectroscopy (SERS) spectra of a benzodiazepine molecule, oxazepam, have been recorded using a nanoporous silica matrix containing gold nanoparticles as SERS substrate. In the measured spectra, we

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a61a289321fbb9c7522f0211530bbdb4
https://hal.archives-ouvertes.fr/hal-02928096