Formation of organic molecules on Titan

Details Formation of organic molecules on Titan Formation of organic molecules on Titan

Sep 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981natur.293...45c&link_type=abstract

Nature, vol. 293, Sept. 3, 1981, p. 45, 46.

Computer Science

30

Atmospheric Chemistry, Nitrogen Compounds, Organic Compounds, Satellite Atmospheres, Titan, Atmospheric Models, Chemical Reactions, Hydrocyanic Acid, Ionic Reactions, Molecular Ions, Saturn, Satellites, Titan, Atmosphere, Organic Compounds, Cyanoacetylene, Chemistry, Hydrogen Cyanide, Nitrogen, Voyager 1, Temperatures, Density, Models, Production Rate, Ethyl Cyanide, Vinyl Cyanide, Composition

Scientific paper

A mechanism is proposed for the formation of complex organic nitrogen compounds in the dense lower atmosphere of Titan. The mechanism is based on three-body association reactions with HCNH(+) ions formed by the reaction of N(+) with CH4, which lead to the production of ethyl cyanide, vinyl cyanide and cyanoacetylene. Calculations for a model atmosphere consistent with the preliminary interpretation of Voyager 1 data for the region of maximum cosmic ray activated chemistry, corresponding to a temperature between 150 and 160 K and a pressure of 20 mbar, are presented which show substantial organic nitrile and hydrogen cyanide production rates. Based on these production rates, it is expected that significant equilibrium concentrations of these compounds will be found on Titan.

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