A mass spectrometric study of ionic reactions pertinent to the radiation chemistry of methane

Aquilanti, Vincenz̊o; Giardini-Guidoni, A.; Volpi, G. G.; Zocchi, F.

doi:10.1016/0020-7055(70)90008-2

Cited by 5 publications

(1 citation statement)

References 34 publications

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“…To avoid problems connected with the measurement of the absolute pressure in the scattering cell or the precise determination of the effective reaction length, we have measured only relative cross sections that have been subsequently normalized on other data available in the literature. [4][5][6][7][8][9][10][11][12][13][14][15] Experiment. The free jet flow reactor used in the experiments performed in Tucson has been described in detail elsewhere.…”

Section: Experimental Methodsmentioning

confidence: 99%

Dissociative Charge Transfer of Argon Ions with Methane Molecules from Ultralow to Superthermal Collision Energies

Tosi¹,

Cappelletti²,

Dmitriev³

et al. 1995

J. Phys. Chem.

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Section: Experimental Methodsmentioning

confidence: 99%

Dissociative Charge Transfer of Argon Ions with Methane Molecules from Ultralow to Superthermal Collision Energies

Tosi¹,

Cappelletti²,

Dmitriev³

et al. 1995

J. Phys. Chem.

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Molecular processes in CH4H2 plasmas diluted with rare gases: reactions of X∗ atoms and X+ ions (X  Ne and Ar) with methane molecules

Tosi

Bassi

Brunetti

et al. 1995

International Journal of Mass Spectrometry and Ion Processes

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Ion–molecule reactions in the systems CF4–CH4 and CF4–C2H6

Heckel

Hanrahan

1975

The Journal of Chemical Physics

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Ion-molecule reaction mechanisms: Thermal energy gas phase reactions of 12C+ and 13C+ ions with CH4, C2H4, C2H6, C3H6, C3H8, and CD3CH2CD3 J. Chem. Phys. 65, 2574 (1976 10.1063/1.433444 Equilibrium studies of gas phase ion-molecule reactions. Ion cyclotron resonance results for the reaction CO2H+ + CH4 ? CH5 + + CO2A mass spectrometric study of ionic reactions in CH.-CF 4 and C,H 6 --CF 4 mixtures was undertaken at pressures as high as 0.52 torr. It was found that CFj ions react in a hydride transfer process with ethane with a rate constant of 3.3X 10-10 cm 3 molecule-I.s-I . A rate constant of 1.6X 10-10 cm' molecule -I·S -I was determined for the reaction of C,Ht ions with C,H 6 • In mixtures of CH. and CF 4 , both CHj and CHt react with CF 4 , apparently by fluoride ion transfer. for which we calculated rate constants of 8.6 X 10-10 and 2.3 X 10-10 cm' molecule-I·s-I • respectively. CFt ions do not attack molecular methane. There is good agreement with published rate constants for the disappearance of CHi. CHj. and CHt ions in pure methane. However we observed a decreasing CHi yield above 0.1 torr which may be due either to impurities or to excess energy in CHt ions as a result of a relatively high repeller field strength within the ion source in our experiments.

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A mass spectrometric study of ionic reactions pertinent to the radiation chemistry of methane

Cited by 5 publications

References 34 publications

Dissociative Charge Transfer of Argon Ions with Methane Molecules from Ultralow to Superthermal Collision Energies

Dissociative Charge Transfer of Argon Ions with Methane Molecules from Ultralow to Superthermal Collision Energies

Molecular processes in CH4H2 plasmas diluted with rare gases: reactions of X∗ atoms and X+ ions (X  Ne and Ar) with methane molecules

Ion–molecule reactions in the systems CF4–CH4 and CF4–C2H6

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