The Production od HCN Dimer and More Complex Oligomers in Dense Interstellar Clouds

Research output: Contribution to journalArticle


Colleges, School and Institutes


Using quantum chemical and kinetic techniques, we show that the reaction between two HCN molecules under interstellar conditions cannot lead efficiently to a dimer of this species (H2C2N2), whatever its structure. If the dimerization reaction does not occur efficiently, then it is impossible to synthesize detectable abundances of the pre-biotic HCN oligomer adenine (H5C5N5) in the interstellar medium via successive neutral-neutral reactions between HCN and its dimer, trimer, and tetramer.


Original languageEnglish
Pages (from-to)611-615
Number of pages5
JournalAstronomy and Astrophysics
Issue number2
Publication statusPublished - 1 Apr 2001


  • ISM : molecules, ISM : abundances