Irradiation of Pyrimidine in Pure H2O Ice with High-Energy Ultraviolet Photons
نویسندگان
چکیده
منابع مشابه
Formation of uracil from the ultraviolet photo-irradiation of pyrimidine in pure H2O ices.
The detection of nucleobases in carbonaceous chondrites such as Murchison supports the scenario in which extraterrestrial organic molecules could have contributed to the origin of life on Earth. However, such large molecules have not been observed to date in astrophysical environments, in particular, comets and the interstellar medium (ISM). The physico-chemical conditions under which nucleobas...
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The informational subunits of RNA or DNA consist of substituted N-heterocyclic compounds that fall into two groups: those based on purine (C₅H₄N₄) (adenine and guanine) and those based on pyrimidine (C₄H₄N₂) (uracil, cytosine, and thymine). Although not yet detected in the interstellar medium, N-heterocycles, including the nucleobase uracil, have been reported in carbonaceous chondrites. Recent...
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ژورنال
عنوان ژورنال: Astrobiology
سال: 2014
ISSN: 1531-1074,1557-8070
DOI: 10.1089/ast.2013.1093