Proton transfer reactions of H3(+) with molecular neutrals at 30 K

Details Proton transfer reactions of H3(+) with molecular neutrals at 30 K Proton transfer reactions of H3(+) with molecular neutrals at 30 K

Apr 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...213l..29m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 213, no. 1-2, April 1989, p. L29-L32. Research supported by CNRS.

Astronomy and Astrophysics

Astrophysics

7

Cryogenic Temperature, Hydrogen Ions, Interstellar Chemistry, Molecular Clouds, Neutral Atoms, Protons, Abundance, Carbon Monoxide, Deuterium, Reaction Kinetics, Sulfur Dioxides

Scientific paper

The first measurements of rate coefficients of proton transfer reactions of H3(+) with CO, N2, CH4, NH3, SO2, and H2S at 30 K are presented. A negative attempt with O2 is discussed. These data have been obtained by using the CRESU technique (Rowe and Marquette, 1987) with a newly designed argon nozzle which yields a uniform supersonic flow at Mach number 5. These measurements are compared with the rate coefficients used in interstellar cloud models. The data concerning polar species are examined in the light of theories of ion-dipole reactions as well as a parameterization of trajectory calculations.

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