Search Results - "Le Picard, Sébastien D"

Thermodynamics of the Elusive HO₃ Radical by Le Picard, Sébastien D, Tizniti, Meryem, Canosa, André, Sims, Ian R, Smith, Ian W.M

“…The role of HO₃ as a temporary reservoir of atmospheric OH radicals remains an open question largely because of the considerable uncertainty in the value of…”
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Crossed-Beam Dynamics, Low-Temperature Kinetics, and Theoretical Studies of the Reaction S(1D) + C2H4 by Leonori, Francesca, Petrucci, Raffaele, Balucani, Nadia, Casavecchia, Piergiorgio, Rosi, Marzio, Skouteris, Dimitris, Berteloite, Coralie, Le Picard, Sébastien D, Canosa, André, Sims, Ian R

“…The reaction between sulfur atoms in the first electronically excited state, S(1D), and ethene (C2H4) has been investigated in a complementary fashion in (a)…”
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THE C(3P) + NH3 REACTION IN INTERSTELLAR CHEMISTRY. II. LOW TEMPERATURE RATE CONSTANTS AND MODELING OF NH, NH2, AND NH3 ABUNDANCES IN DENSE INTERSTELLAR CLOUDS by Hickson, Kevin M., Loison, Jean-Christophe, Bourgalais, Jérémy, Capron, Michael, Picard, Sébastien D. Le, Goulay, Fabien, Wakelam, Valentine

“…ABSTRACT A continuous supersonic flow reactor has been used to measure rate constants for the C(3P) + NH3 reaction over the temperature range 50-296 K. C(3P)…”
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Elusive anion growth in Titan’s atmosphere: Low temperature kinetics of the C3N− + HC3N reaction by Bourgalais, Jérémy, Jamal-Eddine, Nour, Joalland, Baptiste, Capron, Michael, Balaganesh, Muthiah, Guillemin, Jean-Claude, Le Picard, Sébastien D., Faure, Alexandre, Carles, Sophie, Biennier, Ludovic

“…•The reactivity of the molecular anion C3N−, proposed to be abundant in Titan’s ionosphere, is explored.•The kinetics and branching ratios of the C315N−+HC314N…”
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THE C(3P) + NH3 REACTION IN INTERSTELLAR CHEMISTRY. I. INVESTIGATION OF THE PRODUCT FORMATION CHANNELS by Bourgalais, Jérémy, Capron, Michael, Kailasanathan, Ranjith Kumar Abhinavam, Osborn, David L., Hickson, Kevin M., Loison, Jean-Christophe, Wakelam, Valentine, Goulay, Fabien, Picard, Sébastien D. Le

“…ABSTRACT The product formation channels of ground state carbon atoms, C(3P), reacting with ammonia, NH3, have been investigated using two complementary…”
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The rate of the F + H2 reaction at very low temperatures by Tizniti, Meryem, Le Picard, Sébastien D., Lique, François, Berteloite, Coralie, Canosa, André, Alexander, Millard H., Sims, Ian R.

“…The prototypical F + H 2  → HF + H reaction possesses a substantial energetic barrier (~800 K) and might therefore be expected to slow to a negligible rate at…”
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Rate Coefficients for the Reactions of C2(a3Πu) and C2(X1Σg +) with Various Hydrocarbons (CH4, C2H2, C2H4, C2H6, and C3H8): A Gas-Phase Experimental Study over the Temperature Range 24−300 K by Páramo, Alejandra, Canosa, André, Le Picard, Sébastien D, Sims, Ian R

“…The kinetics of reactions of C2(a3Πu) and C2(X1Σg +) with various hydrocarbons (CH4, C2H2, C2H4, C2H6, and C3H8) have been studied in a uniform supersonic flow…”
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Design and performance of an E-band chirped pulse spectrometer for kinetics applications: OCS – He pressure broadening by Hays, Brian M., Guillaume, Théo, Hearne, Thomas S., Cooke, Ilsa R., Gupta, Divita, Abdelkader Khedaoui, Omar, Le Picard, Sébastien D., Sims, Ian R.

“…•A new E-band chirped pulse Fourier transform spectrometer is described in detail.•The performance of the spectrometer is characterized.•The pressure…”
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Kinetics and dynamics of the S(1D2) + H2 → SH + H reaction at very low temperatures and collision energies by Berteloite, Coralie, Lara, Manuel, Bergeat, Astrid, Le Picard, Sébastien D, Dayou, Fabrice, Hickson, Kevin M, Canosa, André, Naulin, Christian, Launay, Jean-Michel, Sims, Ian R, Costes, Michel

“…We report combined studies on the prototypical S(1D2) + H2 insertion reaction. Kinetics and crossed-beam experiments are performed in experimental conditions…”
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Low temperature reaction kinetics of CN−+HC3N and implications for the growth of anions in Titan’s atmosphere by Biennier, Ludovic, Carles, Sophie, Cordier, Daniel, Guillemin, Jean-Claude, Le Picard, Sébastien D., Faure, Alexandre

“…•The reactivity of CN−, proposed to be abundant in Titan’s ionosphere, is explored.•The CN−+HC3N reaction is investigated down to 50K with the CRESU…”
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Product Detection of the CH Radical Reactions with Ammonia and Methyl-Substituted Amines by Bourgalais, Jeremy, Caster, Kacee L, Durif, Olivier, Osborn, David L, Le Picard, Sebastien D, Goulay, Fabien

“…Reactions of the methylidyne (CH) radical with ammonia (NH3), methylamine (CH3NH2), dimethylamine ((CH3)2NH), and trimethylamine ((CH3)3N) have been…”
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Crossed-beam universal-detection reactive scattering of radical beams characterized by laser-induced-fluorescence: the case of C2 and CN by Leonori, Francesca, Hickson, Kevin M., Le Picard, Sébastien D., Wang, Xingan, Petrucci, Raffaele, Foggi, Paolo, Balucani, Nadia, Casavecchia, Piergiorgio

“…Continuous supersonic beams of dicarbon (C 2 ) and cyano (CN) radicals have been generated by a high-pressure radio-frequency discharge beam source starting…”
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A Crossed Molecular Beam, Low-temperature Kinetics, and Theoretical Investigation of the Reaction of the Cyano Radical (CN) with 1,3-butadiene (C4H6). A Route to Complex Nitrogen-bearing Molecules in Low-temperature Extraterrestrial Environments by Morales, Sébastien B, Bennett, Christopher J, Le Picard, Sébastien D, Canosa, André, Sims, Ian R, Sun, B. J, Chen, P. H, Chang, Agnes H. H, Kislov, Vadim V, Mebel, Alexander M, Gu, Xibin, Zhang, Fangtong, Maksyutenko, Pavlo, Kaiser, Ralf I

“…We present a joint crossed molecular beam and kinetics investigation combined with electronic structure and statistical calculations on the reaction of the…”
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An experimental study of the reaction kinetics of C 2(X 1Σ g +) with hydrocarbons (CH 4, C 2H 2, C 2H 4, C 2H 6 and C 3H 8) over the temperature range 24–300 K: Implications for the atmospheres of Titan and the Giant Planets by Canosa, André, Páramo, Alejandra, Le Picard, Sébastien D., Sims, Ian R.

“…The reactivity of C 2(X 1Σ + g) with simple saturated (CH 4, C 2H 6 and C 3H 8) and unsaturated (C 2H 2 and C 2H 4) hydrocarbons has been studied in the gas…”
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Rate coefficients for the reactions of C2(a(3)Pi(u)) and C2(X(1)Sigma(g)(+)) with various hydrocarbons (CH4, C2H2, C2H4, C2H6, and C3H8): a gas-phase experimental study over the temperature range 24-300 K by Páramo, Alejandra, Canosa, André, Le Picard, Sébastien D, Sims, Ian R

“…The kinetics of reactions of C2(a(3)Pi(u)) and C2(X(1)Sigma(g)(+)) with various hydrocarbons (CH4, C2H2, C2H4, C2H6, and C3H8) have been studied in a uniform…”
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Product Detection of the CH((XII)-I-2) Radical Reaction with Cyclopentadiene: A Novel Route to Benzene by Caster, Kacee L., Selby, Talitha M., Osborn, David L., Le Picard, Sébastien D., Goulay, Fabien

“…The reaction of the methylidyne radical (CH(XΠ)) with cyclopentadiene (c-CH) is studied in the gas phase at 4 Torr and 373 K using a multiplexed…”
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Product Detection of the CH(X2Π) Radical Reaction with Cyclopentadiene: A Novel Route to Benzene by Caster, Kacee L, Selby, Talitha M, Osborn, David L, Le Picard, Sebastien D, Goulay, Fabien

“…The reaction of the methylidyne radical (CH­(X2Π)) with cyclopentadiene (c-C5H6) is studied in the gas phase at 4 Torr and 373 K using a multiplexed…”
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An experimental study of the reaction kinetics of C2(X1 σ+g) with hydrocarbons (CH4, C2H2, C2H4, C2H6 and C3H8) over the temperature range 24-300 K : Implications for the atmospheres of titan and the Giant Planets by CANOSA, André, PARAMO, Alejandra, LE PICARD, Sébastien D, SIMS, Ian R

“…The reactivity of C2(X1Σ+g) with simple saturated (CH4, C2H6 and C3H8) and unsaturated (C2H2 and C2H4) hydrocarbons has been studied in the gas phase over the…”
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Rotational energy transfer in collisions between CO and Ar at temperatures from 293 to 30 K by Mertens, Laura A., Labiad, Hamza, Denis-Alpizar, Otoniel, Fournier, Martin, Carty, David, Le Picard, Sébastien D., Stoecklin, Thierry, Sims, Ian R.

“…Experimental measurements and theoretical calculations are reported for rotational energy transfer in the Ar-CO system. Experiments were performed in cold…”
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Low temperature (39-298 K) kinetics study of the reactions of the C4H radical with various hydrocarbons observed in Titan's atmosphere by BERTELOITE, Coralie, LE PICARD, Sébastien D, BIRZA, Petre, GAZEAU, Marie-Claire, CANOSA, André, BENILAN, Yves, SIMS, Ian R

“…The reaction kinetics of the butadinyl radical, C4H, with various hydrocarbons detected in the atmosphere of Titan (methane, ethane, propane, acetylene, ethene…”
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