2016•arXiv (Cornell University)Open access

Methylacetylene (CH3CCH) and propene (C3H6) formation in cold dense\n clouds: a case of dust grain chemistry

Kevin M. Hickson, Valentine Wakelam, Jean‐Christophe Loison

Abstract

We present an extensive review of gas phase reactions producing\nmethylacetylene and propene showing that these relatively abundant unsaturated\nhydrocarbons cannot be synthesized through gas-phase reactions. We explain the\nformation of propene and methylacetylene through surface hydrogenation of C3\ndepleted onto interstellar ices, C3 being a very abundant species in the gas\nphase.\n

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Key concepts: Propene, Gas phase, Photochemistry, Phase (matter), Chemistry, Materials science, Astrobiology, Chemical engineering