Zobrazeno 1 - 10
of 373
pro vyhledávání: '"L. Abouaf-Marguin"'
Publikováno v:
Chemical Physics Letters. 480:82-85
We have measured a nuclear spin conversion time of 100 min for H 2 O highly diluted in solid xenon at 4.2 K. Compared with argon matrices, the conversion is very probably enhanced by the high natural abundance of xenon magnetic isotopes. The ν 2 mod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::385ad32c505a06bff69cd38dfdb90c30
https://doi.org/10.1016/j.cplett.2009.08.071
https://doi.org/10.1016/j.cplett.2009.08.071
Publikováno v:
Chemical Physics Letters
Chemical Physics Letters, 2009, 470, pp.228-232. ⟨10.1016/j.cplett.2009.01.047⟩
Chemical Physics Letters, 2009, 470, pp.228-232. ⟨10.1016/j.cplett.2009.01.047⟩
From the IR induced spectrum between 4000 and 5000 cm −1 of solid normal hydrogen doped with H 2 O, CH 3 F, CH 4 , and double doped with O 2 , the nuclear spin conversion of ortho -H 2 molecules has been analyzed at 4.2 K. The self-conversion rate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4947031c9df7bd554a365450725be55a
https://doi.org/10.1016/j.cplett.2009.01.047
https://doi.org/10.1016/j.cplett.2009.01.047
Autor:
L. Abouaf-Marguin, A.-M. Vasserot
Publikováno v:
Chemical Physics Letters
Chemical Physics Letters, 2008, 460, pp.82-85. ⟨10.1016/j.cplett.2008.04.133⟩
Chemical Physics Letters, 2008, 460, pp.82-85. ⟨10.1016/j.cplett.2008.04.133⟩
We have studied the time evolution of IR spectra of solid normal H 2 doped with O 2 at 4.2 K. We have determined ortho concentration from IR integrated intensity ratio between the ortho double transitions at 4736 cm −1 and the para contribution to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::79234369483ac4afeb51bad4cc1a49e0
https://doi.org/10.1016/j.cplett.2008.04.133
https://doi.org/10.1016/j.cplett.2008.04.133
Publikováno v:
Chemical Physics Letters. 454:61-64
We have observed the time evolution of ( o- H 2 ) n :H 2 O clusters, trapped in solid H 2 at 4.2 K over a period of 178 h, using O 2 to catalyse the ortho to para- nuclear spin conversion of solid H 2 . The clusters observed at time 0 of the experime
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cca6d25c8871ae116f849fdbfd31fc67
https://doi.org/10.1016/j.cplett.2008.01.081
https://doi.org/10.1016/j.cplett.2008.01.081
Publikováno v:
Low Temperature Physics. 29:852-857
Fourier-transform infrared spectroscopy in the frequency range 400–4000 cm−1 has been used to investigate the absorption of H2O and H2O:CO2 complex isolated in solid argon. Thanks to the lowest temperature reached in our experiment, temperature e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a81459100fae9c7e6e29aec5972f08b9
https://doi.org/10.1063/1.1619357
https://doi.org/10.1063/1.1619357
Publikováno v:
Journal of Molecular Spectroscopy. 220:201-208
Low temperature (5 K) high resolution (0.15 and 0.03 cm−1) absorption spectra of 13CO2 have been recorded in neon, argon, krypton, and xenon matrices, in the ν3 and ν2 regions. Diffusion experiments have been performed in krypton and xenon in ord
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8d951dc258fd527ac4736a17801e7f4
https://doi.org/10.1016/s0022-2852(03)00126-7
https://doi.org/10.1016/s0022-2852(03)00126-7
Publikováno v:
The Journal of Chemical Physics. 117:4436-4447
The ν3 vibrational mode of 13CO2, trapped in a rare gas matrix, is excited by a laser pulse near 2300 cm−1. Emission is then observed in the 16 μm region and assigned to three transitions: namely, 3ν21-2ν20, 3ν21-2ν22, and 2ν20-ν21, which a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed7bd3f514e929f2464d44e366684d36
https://doi.org/10.1063/1.1494779
https://doi.org/10.1063/1.1494779
Publikováno v:
Journal of Molecular Structure. 484:145-159
A molecular mechanics method using interaction potentials fitted on “Symmetry Adapted Perturbation Theory” calculations is applied to the determination of some structural and vibrational properties of interacting CO and CO 2 species, either in ga
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c5bd87a79d37a051b66d9ba33680e33
https://doi.org/10.1016/s0022-2860(98)00911-9
https://doi.org/10.1016/s0022-2860(98)00911-9
Autor:
H. Chabbi, V. Raducu, Pierre-Richard Dahoo, L. Abouaf-Marguin, Azzedine Lakhlifi, I. Berrodier, J.L. Teffo
Publikováno v:
The European Physical Journal D - Atomic, Molecular and Optical Physics. 5:71-81
FTIR spectra of the antisymmetric stretch \(\) and symmetric bending \(\)vibrational modes of isotopic species of CO2 trapped in argon matrix are recorded at 5 K with a resolution of \(\). A splitting of the \(\) mode is observed for the different sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2286256d87d7f7698b80a662ea8e83a
https://doi.org/10.1007/s100530050231
https://doi.org/10.1007/s100530050231
Publikováno v:
The Journal of Chemical Physics. 108:8541-8549
A time resolved infrared–infrared double resonance technique is used to study the vibrational relaxation of O3 in rare gas and nitrogen matrices. A tunable infrared (IR) pulsed source excites the ν1+ν3 level of O3 in the ground electronic state.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9853dcb884a1fdf4334aab74d6c609e0
https://doi.org/10.1063/1.476283
https://doi.org/10.1063/1.476283