Zobrazeno 1 - 10
of 96
pro vyhledávání: '"Claudine Crépin"'
Publikováno v:
Photochem; Volume 2; Issue 2; Pages: 263-271
Photochem
Photochem, 2022, 2 (2), pp.263-271. ⟨10.3390/photochem2020019⟩
Photochem
Photochem, 2022, 2 (2), pp.263-271. ⟨10.3390/photochem2020019⟩
International audience; Phosphorescence of C5N− was discovered following the ArF-laser (193 nm) photolysis of cyanodiacetylene (HC5N) isolated in cryogenic argon, krypton, and xenon matrices. This visible emission, with an origin around 460 nm, is
Autor:
Raphaël Thon, Wutharath Chin, Didier Chamma, Mindaugas Jonusas, Jean-Pierre Galaup, Claudine Crépin
Publikováno v:
The Journal of chemical physics. 156(2)
Iron pentacarbonyl is a textbook example of fluxionality. We trap the molecule in cryogenic matrices to study the vibrational dynamics of CO stretching modes involved in the fluxional rearrangement. The infrared spectrum in Ar and N
The role of spin-orbit coupling in the optical spectroscopy of atomic sodium isolated in solid xenon
Publikováno v:
Low Temperature Physics
Low Temperature Physics, American Institute of Physics, 2019, 45 (7), pp.715-720. ⟨10.1063/1.5111294⟩
Scopus-Elsevier
Low Temperature Physics, 2019, 45 (7), pp.715-720. ⟨10.1063/1.5111294⟩
Low Temperature Physics, American Institute of Physics, 2019, 45 (7), pp.715-720. ⟨10.1063/1.5111294⟩
Scopus-Elsevier
Low Temperature Physics, 2019, 45 (7), pp.715-720. ⟨10.1063/1.5111294⟩
Molecular dynamics calculations, based on the diatomics-in-molecules method, have been used to probe the manifestations of spin-orbit (SO) coupling in the experimental absorption bands of atomic sodium isolated in solid xenon. Inclusion of SO couplin
Theoretical study of 'trapping sites' in cryogenic rare gas solids doped with β-dicarbonyl molecules
Autor:
Alejandro Gutiérrez-Quintanilla, M. Lara-Moreno, G. Rojas-Lorenzo, Claudine Crépin, Michèle Chevalier
Publikováno v:
Low Temperature Physics
Low Temperature Physics, American Institute of Physics, 2019, 45 (3), pp.317. ⟨10.1063/1.5090089⟩
Low Temperature Physics, American Institute of Physics, 2019, 45 (3), pp.317. ⟨10.1063/1.5090089⟩
A deposition model to simulate the growth of doped rare gas crystals is used. The study involves organic molecules with a single intramolecular hydrogen bond such as malonaldehyde, 2chloromalonaldehyde and acetylacetone as impurities. Different trapp
Hidden Isomer of Trifluoroacetylacetone Revealed by Matrix Isolation Infrared and Raman Spectroscopy
Autor:
Rasa Platakyte, Michèle Chevalier, Claudine Crépin, Alejandro Gutiérrez-Quintanilla, Justinas Ceponkus
Publikováno v:
Journal of Physical Chemistry A
Journal of Physical Chemistry A, American Chemical Society, 2021, 125 (11), pp.2249-2266. ⟨10.1021/acs.jpca.0c10945⟩
Journal of Physical Chemistry A, American Chemical Society, 2021, 125 (11), pp.2249-2266. ⟨10.1021/acs.jpca.0c10945⟩
International audience; Enol forms of trifluoroacetylacetone (TFacac) isolated in molecular and rare gas matrices were studied using infrared (IR) and Raman spectroscopy. Additionally, calculations using DFT B3LYP and M06-2X as well as MP2 methods we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2920bada49504b648dd201ef5d24392a
https://hal.archives-ouvertes.fr/hal-03189914/document
https://hal.archives-ouvertes.fr/hal-03189914/document
Autor:
Yuma Ohnishi, Claudine Crépin, Kaito Tanaka, Yusuke Morisawa, Tomonari Wakabayashi, Robert Kołos, Hal Suzuki, Urszula Szczepaniak, Jean-Claude Guillemin, Yoriko Wada, Kazunori Ozaki
Publikováno v:
Journal of Molecular Structure
Journal of Molecular Structure, Elsevier, 2020, 1214, pp.128201. ⟨10.1016/j.molstruc.2020.128201⟩
Journal of Molecular Structure, 2020, 1214, pp.128201. ⟨10.1016/j.molstruc.2020.128201⟩
Journal of Molecular Structure, Elsevier, 2020, 1214, pp.128201. ⟨10.1016/j.molstruc.2020.128201⟩
Journal of Molecular Structure, 2020, 1214, pp.128201. ⟨10.1016/j.molstruc.2020.128201⟩
Cyanopolyyne molecules, HC9N and HC11N, were isolated in solutions and UV, IR, and resonance Raman spectra were measured for the study of their electronic and vibrational properties. Strong signals were observed both in the IR and resonance Raman spe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0417fe8263f244960d6f1d5a7e126fa7
https://hal.archives-ouvertes.fr/hal-02563940
https://hal.archives-ouvertes.fr/hal-02563940
Matrix Isolation Spectroscopy and Nuclear Spin Conversion of Propyne Suspended in Solid Parahydrogen
Autor:
Alejandro Gutiérrez-Quintanilla, Claudine Crépin, Aaron I. Strom, Michèle Chevalier, Justinas Ceponkus, David T. Anderson
Publikováno v:
Journal of Physical Chemistry A
Journal of Physical Chemistry A, American Chemical Society, 2020, 124 (22), pp.4471-4483. ⟨10.1021/acs.jpca.0c02900⟩
Journal of Physical Chemistry A, American Chemical Society, 2020, 124 (22), pp.4471-4483. ⟨10.1021/acs.jpca.0c02900⟩
International audience; Parahydrogen (pH2) quantum solids are excellent matrix isolation hosts for studying the rovibrational dynamics and nuclear spin conversion (NSC) kinetics of molecules containing indistinguishable nuclei with nonzero spin. The
Autor:
Claudine Crépin, Rasa Platakyte, Michèle Chevalier, Alejandro Gutiérrez-Quintanilla, Justinas Ceponkus
Publikováno v:
Physical Chemistry Chemical Physics
Physical Chemistry Chemical Physics, Royal Society of Chemistry, 2020, 22 (11), pp.6115-6121. ⟨10.1039/c9cp06866j⟩
Physical Chemistry Chemical Physics, Royal Society of Chemistry, 2020, 22 (11), pp.6115-6121. ⟨10.1039/c9cp06866j⟩
International audience; Internal dynamics of 2-chloromalonaldehyde (2-ClMA) molecule, possessing strong internal hydrogen bond (IHB) was examined by means of matrix isolation spectroscopy in a soft host: para-hydrogen (pH2). 2-ClMA is a chlorinated d
Autor:
Robert Kołos, Michał Turowski, Claudine Crépin, Jean-Claude Guillemin, Urszula Szczepaniak, Alejandro Gutiérrez-Quintanilla, Thomas Custer
Publikováno v:
Journal of Molecular Structure
Journal of Molecular Structure, Elsevier, 2020, 1218, pp.128437. ⟨10.1016/j.molstruc.2020.128437⟩
Journal of Molecular Structure, 2020, 1218, pp.128437. ⟨10.1016/j.molstruc.2020.128437⟩
Journal of Molecular Structure, Elsevier, 2020, 1218, pp.128437. ⟨10.1016/j.molstruc.2020.128437⟩
Journal of Molecular Structure, 2020, 1218, pp.128437. ⟨10.1016/j.molstruc.2020.128437⟩
International audience; Electronic phosphorescence and infrared absorption spectra of methylcyanodiacetylene (CH3C5N) are revisited using matrix isolation in solid parahydrogen and neon. Band assignments previously found for Ar, Kr, Xe, and N2 low-te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c63c7883dae035bf8cb099d05c3e0c9d
https://hal-univ-rennes1.archives-ouvertes.fr/hal-02864476/document
https://hal-univ-rennes1.archives-ouvertes.fr/hal-02864476/document
Autor:
Claudine Crépin, Justinas Ceponkus, Rasa Platakyte, Michèle Chevalier, Alejandro Gutiérrez-Quintanilla, G. Rojas-Lorenzo
Publikováno v:
Physical Chemistry Chemical Physics
Physical Chemistry Chemical Physics, Royal Society of Chemistry, 2018, 20 (18), pp.12888-12897. ⟨10.1039/C7CP06481K⟩
Physical Chemistry Chemical Physics, Royal Society of Chemistry, 2018, 20 (18), pp.12888-12897. ⟨10.1039/C7CP06481K⟩
International audience; The chelated enol isomer of 2-chloromalonaldehyde (2-ClMA) is experimentally characterized for the first time by IR and Raman spectroscopies. The spectra are obtained by trapping the molecule in cryogenic matrices and analyzed