The association reaction C2H3++CO and interstellar propynal.

Details The association reaction C2H3++CO and interstellar propynal. The association reaction C2H3++CO and interstellar propynal.

Nov 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995ijmsi.149..251s&link_type=abstract

International Journal of Mass Spectrometry and Ion Processes, Vol. 149 - 150, p. 251 - 255

Physics

2

Interstellar Clouds: Chemistry

Scientific paper

Two different C2H3+ ions were generated in a selected-ion flow tube operating at room temperature. C-2 protonated propadienone, H2C=CHCO+, was produced by the association reaction between C2H3+ and CO. Protonated propynal, HC≡C-CHOH+, was produced by proton transfer to propynal, HC≡C-CHO. The ions were identified by their proton transfer reactions with C2H5NH2, CH3NH2, C4H5N, NH3, (n-C4H9)2O, (C2H5)2CO, C6H10O, C6H6 and C2H5I. Rate coefficients and branching ratios are reported for these reactions. The implications of this work for the synthesis of HC≡C-CHO in interstellar clouds are discussed.

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