Quantum-chemical approach to serine formation in the interstellar medium: A possible reaction pathway
1 Department of Mathematics & AstronomyUniversity of Lucknow, 226007 Lucknow, India
2 Department of Physics, University of Lucknow, 226007 Lucknow, India
Received: 15 November 2011
Accepted: 28 November 2013
Radical-radical and radical-neutral interaction schemes are very important for the formation of comparatively complex molecules in low-temperature chemistry. The formation of amino acids, such as serine, in the interstellar medium is quite difficult. We explored the possibility of serine formation in the interstellar medium through detected interstellar molecules such as CH, CO, and OH by radical-radical and radical-neutral interactions in the gaseous phase using rigorous quantum-chemical calculations. The reaction energies, the low potential barrier and the structures of all the geometries involved in the reaction path show that serine formation is possible in interstellar space via the reaction paths.
Key words: radiation mechanisms: thermal / astrobiology / ISM: molecules / molecular processes / methods: miscellaneous
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