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Measurements Of Ion-Molecule Reaction Rate Coefficients Between 8 and 160 K by the Cresu Technique

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Molecular Astrophysics

Part of the book series: NATO ASI Series ((ASIC,volume 157))

Abstract

The CRESU technique uses uniform supersonic jets as flow reactors and allows the determination of ion-molecule reaction rate coefficients at extremely low temperatures (down to 8 K). This technique requires an exceptional pumping capacity and a correct design of contoured axisymmetric Laval nozzles. Several reactions have been studied in oxygen or nitrogen buffer gases (O2 + + CH 4 ; O2 + + 202 ; N2 + + 2N2) as well as in helium buffer gas (He+ + N2, O2, CO ; N ++ H2, CH4, CO, O2 ; N2 + + N2 + He; N2 + + O2 ; O+ + O2), some of which being relevant to interstellar cloud chemistry.

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© 1985 D. Reidel Publishing Company

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Rowe, B.R., Marquette, J.B., Dupeyrat, G. (1985). Measurements Of Ion-Molecule Reaction Rate Coefficients Between 8 and 160 K by the Cresu Technique. In: Diercksen, G.H.F., Huebner, W.F., Langhoff, P.W. (eds) Molecular Astrophysics. NATO ASI Series, vol 157. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-5432-8_31

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  • DOI: https://doi.org/10.1007/978-94-009-5432-8_31

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-8898-5

  • Online ISBN: 978-94-009-5432-8

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