Multiply deuterated molecules and constraints on interstellar chemistry

Details Multiply deuterated molecules and constraints on interstellar chemistry Multiply deuterated molecules and constraints on interstellar chemistry

Oct 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002p%26ss...50.1125r&link_type=abstract

Planetary and Space Science, Volume 50, Issue 12-13, p. 1125-1132.

Physics

13

Scientific paper

We consider the formation of molecules containing two or more deuterium atoms, and show how the abundances of such molecules may be used as interstellar isotopic labelling experiments to elucidate the principal chemical processes occurring in molecular clouds. Although the overall D/H ratios in deuterated isotopomers will depend on the source of the D, we show that in many cases the relative D/H ratios in singly:doubly deuterated isotopomers depends only on the chemical mechanism forming the molecule. We derive analytic expressions for the steady-state fractionation ratios in a number of molecules, including water, formaldehyde, methanol, ammonia, methane, and acetylene, and show how observations of isotopomers of these species may be used to discriminate between a gas-phase or grain-surface origin. We also briefly consider deuteration of polycyclic aromatic hydrocarbons.

Affiliated with

Also associated with

No associations

Rating

Multiply deuterated molecules and constraints on interstellar chemistry does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Multiply deuterated molecules and constraints on interstellar chemistry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiply deuterated molecules and constraints on interstellar chemistry will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1861773