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The Formation of Deuterated Molecules in Dense Clouds

Published online by Cambridge University Press:  07 August 2017

T J Millar
T J Millar*
Affiliation:
Department of Mathematics, UMIST, PO Box 88, Manchester, UK

Abstract

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In this article, I list the deuterated species detected so far, together with an estimate of their abundance ratios relative to their hydrogen bearing parent for a variety of astronomical regions, discuss the basic chemical processes which fractionate deuterium together with some simple estimates of the degree of fractionation which can result from these processes. I then discuss in detail the deuteration of hydrocarbon molecules and show that the effects of chemical reactions which can recycle parent species can appreciably affect estimates of fractionation. Finally I shall discuss how structural effects may inhibit fractionation in the cyanopolyynes and related species.

Type
Quiescent Clouds and Regions of Star Formation
Information
Symposium - International Astronomical Union , Volume 150: Astrochemistry of Cosmic Phenomena , 1992 , pp. 211 - 215
Copyright
Copyright © Kluwer 1992 

References

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