OH vibrational distribution in the reaction O(1D)+CH4

Cheskis, Sergey; Iogansen, A.A.; Kulakov, P.V.; Razuvaev, I.Yu.; Sarkisov, O. M.; Titov, A. A.

doi:10.1016/s0009-2614(89)87356-7

Cited by 58 publications

(52 citation statements)

References 6 publications

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“…This is clearly different from the OHϩCH 3 channel which unambiguously exhibits nonstatistical behavior in the products, 9,10,12,13,14,15,19,20,21 indicating that this channel does not goes through the formation of a long-lived complex. Kawasaki and co-workers 11 also suggested that the reaction mechanism of the H formation channel is different from that of the OH formation channel.…”

Section: Discussionmentioning

confidence: 70%

“…State-resolved reaction dynamics of the OHϩCH 3 channel have been carried out by a number of groups. 9,10,12,15,19,20,21 Experimental results suggested that the OH product rovibrational state distributions are nonstatistical. This was attributed to a fast dissociation of the CH 3 OH* intermediate, on a time scale too short to allow complete intramolecular relaxation.…”

Section: Introductionmentioning

confidence: 99%

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Dynamics of the O(1D)+CH4 reaction: Atomic hydrogen channel vs molecular hydrogen channel

Lin

Harich

Lee

et al. 1999

The Journal of Chemical Physics

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Section: Discussionmentioning

confidence: 70%

Section: Introductionmentioning

confidence: 99%

Dynamics of the O(1D)+CH4 reaction: Atomic hydrogen channel vs molecular hydrogen channel

Lin

Harich

Lee

et al. 1999

The Journal of Chemical Physics

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“…14,15 The effect of the O( 1 D) + CH 4 collision energy (relative translational energy of reactants, E c ) on the OH product vibrational state distributions, has been measured by infrared (IR) emission and related techniques 20, 25 and by laser-induced fluorescence (LIF). 19,[21][22][23][24] The rotational state distributions were also determined experimentally in Refs. 19 and 22-24.…”

Section: Introductionmentioning

confidence: 99%

Quantum dynamical study of the O(1D) + CH4 → CH3 + OH atmospheric reaction

Bouchrit

Jorfi

Abdallah

et al. 2014

The Journal of Chemical Physics

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Time independent quantum mechanical (TIQM) scattering calculations have been carried out for the O((1)D) + CH4(X(1)A1) → CH3(X(2)A2″) + OH(X(2)Π) atmospheric reaction, using an ab initio ground potential energy surface where the CH3 group is described as a pseudo-atom. Total and state-to-state reaction probabilities for a total angular momentum J = 0 have been determined for collision energies up to 0.5 eV. The vibrational and rotational state OH product distributions show no specific behavior. The rate coefficient has been calculated by means of the J-shifting approach in the 10-500 K temperature range and slightly depends on T at ordinary temperatures (as expected for a barrierless reaction). Quantum effects do not influence the vibrational populations and rate coefficient in an important way, and a rather good agreement has been found between the TIQM results and the quasiclassical trajectory and experimental ones. This reinforces somewhat the reliability of the pseudo-triatomic approach under the reaction conditions explored.

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“…The cross sections for elastic scattering and excitation exchange, and the mutual diffusion coefficient for collisions of O( 1 D ) with O( 3 P ) were computed by Yee and Dalgarno* [1987], and the collisional quenching rate coefficient was computed by Yee et al [1990]. The reaction of 0( 1 D ) with CH 4 to produce OH( υ ) + CH 3 was investigated by Cheskis et al [1989] who found that the vibrational distribution of OH produced in the reaction peaks at υ = 2. Rate coefficients for reactions of O( 1 D ) with CO 2 , H 2 , N 2 , and O 2 over the temperature range 10–600 K were computed by Phillips [1990b].…”

Section: Reactions Of Neutral Speciesmentioning

confidence: 99%

Cross Sections and Reaction Rates of Relevance to Aeronomy

Fox

1991

Reviews of Geophysics

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Experimental and theoretical data relevant to models and measurements of the chemical and thermal structures and luminosity of the thermospheres of the Earth and planets published during the last four years are surveyed, and those in which one or more authors is affiliated with a U.S. institution are indicated. Among chemical processes, we include ion‐molecule reactions, dissociative recombination of molecular ions, and reactions between neutral species. Both reactions between ground state species and species in excited states are considered, including energy transfer and quenching. Measured and calculated cross sections for interactions of solar radiation with atmospheric species, such as photoabsorption, photoionization, and photodissociation and related processes are surveyed. Measurements and calculations of cross sections for elastic and inelastic scattering of particles, including electrons, protons, alpha particles, heavier ions, and neutral atoms are also surveyed.

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OH vibrational distribution in the reaction O(1D)+CH4

Cited by 58 publications

References 6 publications

Dynamics of the O(1D)+CH4 reaction: Atomic hydrogen channel vs molecular hydrogen channel

Dynamics of the O(1D)+CH4 reaction: Atomic hydrogen channel vs molecular hydrogen channel

Quantum dynamical study of the O(1D) + CH4 → CH3 + OH atmospheric reaction

Cross Sections and Reaction Rates of Relevance to Aeronomy

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