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Nieuwjaer N, Desfrançois C, Lecomte F, Manil B, Soorkia S, Broquier M, Grégoire G. Photodissociation Spectroscopy of Cold Protonated Synephrine: Surprising Differences between IR–UV Hole-Burning and IR Photodissociation Spectroscopy of the O–H and N–H Modes. J Phys Chem A 2018; 122:3798-3804. [DOI: 10.1021/acs.jpca.8b01422] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- N. Nieuwjaer
- Laboratoire de Physique des Lasers, CNRS, Université Paris 13, Sorbonne Paris Cité, 93430 Villetaneuse, France
| | - C. Desfrançois
- Laboratoire de Physique des Lasers, CNRS, Université Paris 13, Sorbonne Paris Cité, 93430 Villetaneuse, France
| | - F. Lecomte
- Laboratoire de Physique des Lasers, CNRS, Université Paris 13, Sorbonne Paris Cité, 93430 Villetaneuse, France
| | - B. Manil
- Laboratoire de Physique des Lasers, CNRS, Université Paris 13, Sorbonne Paris Cité, 93430 Villetaneuse, France
| | - S. Soorkia
- Institut des Sciences Moléculaires d’Orsay (ISMO), CNRS, Univ. Paris Sud, Université Paris-Saclay, F-91405 Orsay, France
- Centre Laser de l’Université Paris-Sud (CLUPS/LUMAT), Univ. Paris-Sud, CNRS, IOGS, Université Paris-Saclay, F-91405 Orsay, France
| | - M. Broquier
- Institut des Sciences Moléculaires d’Orsay (ISMO), CNRS, Univ. Paris Sud, Université Paris-Saclay, F-91405 Orsay, France
- Centre Laser de l’Université Paris-Sud (CLUPS/LUMAT), Univ. Paris-Sud, CNRS, IOGS, Université Paris-Saclay, F-91405 Orsay, France
| | - G. Grégoire
- Institut des Sciences Moléculaires d’Orsay (ISMO), CNRS, Univ. Paris Sud, Université Paris-Saclay, F-91405 Orsay, France
- Centre Laser de l’Université Paris-Sud (CLUPS/LUMAT), Univ. Paris-Sud, CNRS, IOGS, Université Paris-Saclay, F-91405 Orsay, France
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Capello MC, Hernández FJ, Broquier M, Dedonder-Lardeux C, Jouvet C, Pino GA. Hydrogen bonds vs. π-stacking interactions in the p-aminophenolp-cresol dimer: an experimental and theoretical study. Phys Chem Chem Phys 2018; 18:31260-31267. [PMID: 27819104 DOI: 10.1039/c6cp06352g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The gas phase structure and excited state lifetime of the p-aminophenolp-cresol heterodimer have been investigated by REMPI and LIF spectroscopy with nanosecond laser pulses and pump-probe experiments with picosecond laser pulses as a model system to study the competition between π-π and H-bonding interactions in aromatic dimers. The excitation is a broad and unstructured band. The excited state of the heterodimer is long lived (2.5 ± 0.5) ns with a very broad fluorescence spectrum red-shifted by 4000 cm-1 with respect to the excitation spectrum. Calculations at the MP2/RI-CC2 and DFT-ωB97X-D levels indicate that hydrogen-bonded (HB) and π-stacked isomers are almost isoenergetic in the ground state while in the excited state only the π-stacked isomer exists. This suggests that the HB isomer cannot be excited due to negligible Franck-Condon factors and therefore the excitation spectrum is associated with the π-stacked isomer that reaches vibrationally excited states in the S1 state upon vertical excitation. The excited state structure is an exciplex responsible for the fluorescence of the complex. Finally, a comparison was performed between the π-stacked structure observed for the p-aminophenolp-cresol heterodimer and the HB structure reported for the (p-cresol)2 homodimer indicating that the differences are due to different optical properties (oscillator strengths and Franck-Condon factors) of the isomers of both dimers and not to the interactions involved in the ground state.
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Affiliation(s)
- M C Capello
- Instituto de Investigaciones en Físico Química de Córdoba (INFIQC) CONICET - UNC. Dpto. de Fisicoquímica - Facultad de Ciencias Químicas - Centro Láser de Ciencias Moleculares - Universidad Nacional de Córdoba, Ciudad Universitaria, X5000HUA Córdoba, Argentina.
| | - F J Hernández
- Instituto de Investigaciones en Físico Química de Córdoba (INFIQC) CONICET - UNC. Dpto. de Fisicoquímica - Facultad de Ciencias Químicas - Centro Láser de Ciencias Moleculares - Universidad Nacional de Córdoba, Ciudad Universitaria, X5000HUA Córdoba, Argentina.
| | - M Broquier
- Centre Laser de l'Université Paris Sud (CLUPS/LUMAT), Univ. Paris-Sud, CNRS, Institut d'Optique Graduate School, Univ. Paris-Saclay, F-91405 Orsay, France and Institut des Sciences Moléculaires d'Orsay (ISMO), CNRS, Univ. Paris-Sud, Univ. Paris-Saclay, F-91405 Orsay, France
| | | | - C Jouvet
- Aix Marseille Université, CNRS, PIIM UMR 7345, Marseille, 13397, France
| | - G A Pino
- Instituto de Investigaciones en Físico Química de Córdoba (INFIQC) CONICET - UNC. Dpto. de Fisicoquímica - Facultad de Ciencias Químicas - Centro Láser de Ciencias Moleculares - Universidad Nacional de Córdoba, Ciudad Universitaria, X5000HUA Córdoba, Argentina.
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Garcia RL, Nieuwjaer N, Desfrançois C, Lecomte F, Leite SD, Manil B, Broquier M, Grégoire G. Vibronic spectra of protonated hydroxypyridines: contributions of prefulvenic and planar structures. Phys Chem Chem Phys 2017; 19:8258-8268. [DOI: 10.1039/c6cp08623c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The UV photofragmentation spectra of cold protonated hydroxypyridines display well resolved vibrational structures, interpreted with calculations at the CC2 level.
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Affiliation(s)
- R. Lozada Garcia
- Laboratoire de Physique des Lasers
- CNRS
- Université Paris 13
- Sorbonne Paris Cité
- France
| | - N. Nieuwjaer
- Laboratoire de Physique des Lasers
- CNRS
- Université Paris 13
- Sorbonne Paris Cité
- France
| | - C. Desfrançois
- Laboratoire de Physique des Lasers
- CNRS
- Université Paris 13
- Sorbonne Paris Cité
- France
| | - F. Lecomte
- Laboratoire de Physique des Lasers
- CNRS
- Université Paris 13
- Sorbonne Paris Cité
- France
| | - S. D. Leite
- Laboratoire de Physique des Lasers
- CNRS
- Université Paris 13
- Sorbonne Paris Cité
- France
| | - B. Manil
- Laboratoire de Physique des Lasers
- CNRS
- Université Paris 13
- Sorbonne Paris Cité
- France
| | - M. Broquier
- Institut des Sciences Moléculaires d'Orsay (ISMO)
- CNRS
- Univ. Paris Sud
- Université Paris-Saclay
- F-91405 Orsay
| | - G. Grégoire
- Institut des Sciences Moléculaires d'Orsay (ISMO)
- CNRS
- Univ. Paris Sud
- Université Paris-Saclay
- F-91405 Orsay
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Sepioł J, Grabowska A, Borowicz P, Kijak M, Broquier M, Jouvet C, Dedonder-Lardeux C, Zehnacker-Rentien A. Excited-state intramolecular proton transfer reaction modulated by low-frequency vibrations: an effect of an electron-donating substituent on the dually fluorescent bis-benzoxazole. J Chem Phys 2011; 135:034307. [PMID: 21787003 DOI: 10.1063/1.3609759] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Excited-state intramolecular proton transfer (ESIPT) reaction has been studied in a molecule showing dual fluorescence, the 2,5-bis(2-benzoxazolyl)-4-methoxyphenol (BBMP), and its isotopomers, where the methoxy, and alternatively, the OH group has been deuterated. Attention is focused on the influence of electron donating OCH(3) substituent on fast excited state reaction. Comparison between the resonance-enhanced multiphoton ionization spectrum and the laser-induced excitation of the primary and phototautomeric emissions has been done. The geometry, electron density distribution, vibrational structure as well as the potential energy profiles in the S(0) and S(1) states of four possible rotameric forms of BBMP were calculated with application of the density functional theory (DFT). It allowed identifying the most probable conformer and assessing the role of low-frequency motions for the ESIPT efficiency.
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Affiliation(s)
- J Sepioł
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44, PL-01-224 Warsaw, Poland.
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Gloaguen E, de Courcy B, Piquemal JP, Pilmé J, Parisel O, Pollet R, Biswal HS, Piuzzi F, Tardivel B, Broquier M, Mons M. Gas-phase folding of a two-residue model peptide chain: on the importance of an interplay between experiment and theory. J Am Chem Soc 2010; 132:11860-3. [PMID: 20687601 DOI: 10.1021/ja103996q] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
In order to assess the ability of theory to describe properly the dispersive interactions that are ubiquitous in peptide and protein systems, an isolated short peptide chain has been studied using both gas-phase laser spectroscopy and quantum chemistry. The experimentally observed coexistence of an extended form and a folded form in the supersonic expansion was found to result from comparable Gibbs free energies for the two species under the high-temperature conditions (< or = 320 K) resulting from the laser desorption technique used to vaporize the molecules. These data have been compared to results obtained using a series of quantum chemistry methods, including DFT, DFT-D, and post-Hartree-Fock methods, which give rise to a wide range of relative stabilities predicted for these two forms. The experimental observation was best reproduced by an empirically dispersion-corrected functional (B97-D) and a hybrid functional with a significant Hartree-Fock exchange term (M06-2X). In contrast, the popular post-Hartree-Fock method MP2, which is often used for benchmarking these systems, had to be discarded because of a very large basis-set superposition error. The applicability of the atomic counterpoise correction (ACP) is also discussed. This work also introduces the mandatory theoretical examination of experimental abundances. DeltaH(0 K) predictions are clearly not sufficient for discussion of folding, as the conformation inversion temperature is crucial to the conformation determination and requires taking into account thermodynamical corrections (DeltaG) in order to computationally isolate the most stable conformation.
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Affiliation(s)
- E Gloaguen
- CEA, IRAMIS, Service des Photons, Atomes et Molécules, and CNRS, Laboratoire Francis Perrin, URA 2453, 91191 Gif-sur-Yvette, France
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Pino GA, Oldani AN, Marceca E, Fujii M, Ishiuchi SI, Miyazaki M, Broquier M, Dedonder C, Jouvet C. Excited state hydrogen transfer dynamics in substituted phenols and their complexes with ammonia: ππ∗-πσ∗ energy gap propensity and ortho-substitution effect. J Chem Phys 2010; 133:124313. [DOI: 10.1063/1.3480396] [Citation(s) in RCA: 116] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Carrera A, Nielsen IB, Carçabal P, Dedonder C, Broquier M, Jouvet C, Domcke W, Sobolewski AL. Biradicalic excited states of zwitterionic phenol-ammonia clusters. J Chem Phys 2009; 130:024302. [PMID: 19154023 DOI: 10.1063/1.3054292] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Phenol-ammonia clusters with more than five ammonia molecules are proton transferred species in the ground state. In the present work, the excited states of these zwitterionic clusters have been studied experimentally with two-color pump probe methods on the nanosecond time scale and by ab initio electronic-structure calculations. The experiments reveal the existence of a long-lived excited electronic state with a lifetime in the 50-100 ns range, much longer than the excited state lifetime of bare phenol and small clusters of phenol with ammonia. The ab initio calculations indicate that this long-lived excited state corresponds to a biradicalic system, consisting of a phenoxy radical that is hydrogen bonded to a hydrogenated ammonia cluster. The biradical is formed from the locally excited state of the phenolate anion via an electron transfer process, which neutralizes the charge separation of the ground state zwitterion.
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Affiliation(s)
- A Carrera
- University of Buenos Aires, Ciudad Universitaria, 3er piso, Pab. II, 1428 Buenos Aires, Argentina
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Le Barbu-Debus K, Broquier M, Mahjoub A, Zehnacker-Rentien A. Chiral recognition in jet-cooled complexes of (1R,2S)-(+)-cis-1-amino-2-indanol and methyl lactate: on the importance of the CH⋯π interaction. Phys Chem Chem Phys 2009; 11:7589-98. [DOI: 10.1039/b906834a] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Alata I, Omidyan R, Dedonder-Lardeux C, Broquier M, Jouvet C. Electronically excited states of protonated aromatic molecules: benzaldehyde. Phys Chem Chem Phys 2009; 11:11479-86. [DOI: 10.1039/b913422k] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Broquier M, Crépin C, Dubost H, Galaup JP. IR spectra and vibrational dephasing of the CO stretching mode in W(CO)6 doped cryogenic matrices. Chem Phys 2007. [DOI: 10.1016/j.chemphys.2007.06.030] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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11
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Broquier M, Lebech B, Crépin C. Environment effect on the vibrational dephasing of HCl, and HCl containing complexes, probed in van der Waals solids. Chem Phys Lett 2005. [DOI: 10.1016/j.cplett.2005.09.042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Le Barbu-Debus K, Broquier M, Lahmani F, Zehnacker-Rentien * A. Localization of electronic and vibrational energy in the jet-cooledm-cyanophenol/o-cyanophenol dimer: laser induced fluorescence and fluorescence-dip IR spectra. Mol Phys 2005. [DOI: 10.1080/00268970500077608] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Broquier M, Crépin C, Cuisset A, Dubost H, Galaup JP. Influence of a weak hydrogen bond on vibrational coherence probed by photon echoes in DCl dimer trapped in solid nitrogen. J Phys Chem A 2005; 109:4873-80. [PMID: 16833833 DOI: 10.1021/jp0509921] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The dynamics in the ground electronic state of the two intramolecular D-Cl stretching modes of (DCl)2 in nitrogen solid has been probed by degenerate four wave mixing experiments. Accumulated photon echoes on the "free" nu1 and "bonded" nu2 modes have been performed by means of the free electron laser of Orsay (CLIO). The analysis of the time-resolved signals provides information on the various processes responsible for the loss of vibrational coherence, in particular intra- and intermolecular vibrational energy transfer and pure dephasing. The influence of the weak hydrogen bond is clearly observed on the coherence times of the two stretching modes. Whatever the temperature, the homogeneous width of nu2 lines is almost twice that of nu1 lines. Contrary to the case of isolated DCl trapped in solid nitrogen, no obvious effect of the nitrogen lattice can be extracted from the temperature dependence of the coherence times.
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Affiliation(s)
- M Broquier
- Laboratoire de Photophysique Moléculaire du CNRS, Bât 210, Université Paris-Sud, 91405 Orsay Cedex, France
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Broquier M, Crépin C, Cuisset A, Dubost H, Galaup JP, Roubin P. Vibrational dynamics of deuterium chloride in solid nitrogen probed by linear and nonlinear spectroscopy. J Chem Phys 2003. [DOI: 10.1063/1.1570403] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Lahmani F, Zehnacker-Rentien A, Broquier M. Electronic and vibrational spectroscopy of jet-cooled complexes of o-cyanophenol. J Photochem Photobiol A Chem 2002. [DOI: 10.1016/s1010-6030(02)00312-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Lahmani F, Broquier M, Zehnacker-Rentien A. The o-cyanophenol dimer as studied by laser-induced fluorescence and IR fluorescence dip spectroscopy: a study of a symmetrical double hydrogen bond. Chem Phys Lett 2002. [DOI: 10.1016/s0009-2614(02)00134-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Le Barbu K, Lahmani F, Mons M, Broquier M, Zehnacker A. IR–UV investigation of the structure of the 1-phenylethanol chromophore and its hydrated complexes. Phys Chem Chem Phys 2001. [DOI: 10.1039/b105036m] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Broquier M, Lahmani F, Zehnacker-Rentien A, Brenner V, Millié P, Peremans A. Hydrogen-Bonded Bridges in Complexes of o-Cyanophenol: Laser-Induced Fluorescence and IR/UV Double-Resonance Studies. J Phys Chem A 2001. [DOI: 10.1021/jp010218n] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
| | | | | | | | | | - A. Peremans
- Facultés Universitaires Notre-Dame de la Paix Physics Department, LASMOS Laboratory, 61 rue de Bruxelles, B-5000 Namur, Belgique
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Crepin C, Broquier M, Dubost H, Galaup JP, Ortega JM. Time domain investigation on vibrational dephasing and spectral diffusion in CO-doped solid N2. Phys Rev Lett 2000; 85:964-967. [PMID: 10991450 DOI: 10.1103/physrevlett.85.964] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2000] [Indexed: 05/23/2023]
Abstract
Infrared picosecond accumulated photon echo experiments have been performed for the first time, using the Orsay Free Electron Laser, on the v = 0-->v = 1 transition of CO in solid nitrogen. The vibrational dephasing time is found to be exceptionally long ( T2>/=120 ns) at low temperature. The analysis of the observed spectral diffusion leads one to assume different energy transfer mechanisms depending on the CO concentration.
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Affiliation(s)
- C Crepin
- Laboratoire de Photophysique Moleculaire du CNRS, Universite Paris-Sud, Batiment 210, 91405 Orsay Cedex, France
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Çarçabal P, Broquier M, Chevalier M, Picard-Bersellini A, Brenner V, Millié P. Infrared spectra of the C[sub 2]H[sub 2]–HCl complexes: An experimental and ab initio study. J Chem Phys 2000. [DOI: 10.1063/1.1289250] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Chabbi H, Dahoo P, Gauthier-Roy B, Vasserot A, Abouaf-Marguin L, Broquier M, Dubost H, Kolos R, Tramer A, Berset J, Ortega J. Vibrational stimulated emission of 13CO2 in solid argon. Chem Phys Lett 1998. [DOI: 10.1016/s0009-2614(98)00034-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Broquier M, Lefevre G, Pittman M, Picard-Bersellini A, Chevalier M, Billing G. Transfer of rotational population in NH3by infrared-infrared double resonance. Mol Phys 1993. [DOI: 10.1080/00268979300101861] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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23
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Aroui H, Broquier M, Chevalier M, Picard-Bersellini A, Billing G. Temperature effects on collision cross sections between some rovibrational states of ammonia gas perturbed by hydrogen and helium. Mol Phys 1991. [DOI: 10.1080/00268979100102671] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Aroui H, Picard‐Bersellini A, Broquier M, Blanchard S, Billing GD. Fourier transform linewidths measurements in NH3 in the vibrational ground state. J Chem Phys 1988. [DOI: 10.1063/1.455588] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Broquier M, Picard‐Bersellini A, Aroui H, Billing GD. Pressure broadening and cross relaxation of ammonia perturbed by hydrogen and helium: Implications on intermolecular potentials and discussion of rotational effects. J Chem Phys 1988. [DOI: 10.1063/1.454134] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Broquier M, Picard‐Bersellini A, Whitaker BJ, Green S. Rotational inelastic cross sections for OCS–Ar, OCS–He, OCS–H2 collisions: A comparison between theory and experiment. J Chem Phys 1986. [DOI: 10.1063/1.450421] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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