- Conference date: 10–13 July 2012
- Location: S. N. Bose National Centre for Basic Sciences, Kolkata, India
Chemistry of the dense and cold interstellar clouds are mainly dominated by the ion-molecular and radical-radical interactions though some neutral-neutral reactions are also barrierless and feasible at this condition. The base pairs of RNA are guanine (G) & uracil (U) (G-U pair) and adenine (A) & cytosine (C) (A-C pair). We perform quantum chemical calculations to predict the energetically most economical as well as favorable root for the formation of major bases of the nucleic acids. The outcome of this quantum chemical calculations could be used into our hydro-chemical model to obtain the abundances of some of the important bases of RNA during the formation of a proto star. It is well known that the thymine (T) and uracil (U) are the two nucleobases which are not common in DNA and RNA. Our quantum chemical calculation suggests that uracil could be produced prior to thymine in our chemical network. These findings could be used to support the RNA world hypothesis.
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