Abstract
Three new techniques are presented which allow rate coefficient measurements for ion molecule reactions in the temperature range of interstellar clouds. With an ion trap and a static drift tube cryogenic cooling by liquid helium is used. These techniques are therefore restricted to molecular hydrogen as neutral reactant. With the CRESU method the low temperature is obtained by supersonic expansion. This last technique has a high chemical versatility.
The results concerning radiative associations, fast and slow exothermic reactions and a reaction of very small endothermicity are presented. Some implications for interstellar chemistry are highlighted.
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Rowe, B.R. (1988). Studies of Ion-Molecule Reactions at T < 80k. In: Millar, T.J., Williams, D.A. (eds) Rate Coefficients in Astrochemistry. Astrophysics and Space Science Library, vol 146. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-3007-0_9
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DOI: https://doi.org/10.1007/978-94-009-3007-0_9
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