Detection of deuterated cyanodiacetylene /DC5N/ in Taurus Molecular Cloud 1

Details Detection of deuterated cyanodiacetylene /DC5N/ in Taurus Molecular Cloud 1 Detection of deuterated cyanodiacetylene /DC5N/ in Taurus Molecular Cloud 1

Dec 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...251l..33m&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 251, Dec. 1, 1981, p. L33-L36.

Astronomy and Astrophysics

Astrophysics

19

Cyano Compounds, Deuterium Compounds, Electron Transitions, Interstellar Chemistry, Interstellar Matter, Molecular Clouds, Abundance, Acetylene, Cyanoacetylene, Molecular Spectra, Reaction Kinetics, Spectrum Analysis

Scientific paper

The J = 9-8 and J = 10-9 transitions of deuterated cyanodiacetylene (DC5N) have been detected at 22.9 and 25.4 GHz in Taurus Molecular Cloud 1. The abundance ratio DC5N/HC5N is found to lie in the range 0.006-0.016, which overlaps the range 0.013-0.017 observed for DCO(+)/HCO(+), and is less than the range 0.02-0.08 determined for DC3N/HC3N. The observation that R(DC5N) is approximately 0.5 R(DCO(+)), is consistent with a model in which HC5N is formed on grains and subsequently deuterated by reactions with H2D(+) in the gas phase.

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