Accurate calculations of the oxo–hydroxy tautomers of uracil
- 1 January 1990
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 2
- No. 2,p. 329-330
- https://doi.org/10.1039/p29900000329
Abstract
The geometric structures of the three lowest-energy tautomers of uracil have been calculated at the 6-31G** SCF level. Their relative energies have been calculated with the inclusion of correlation and zero-point energy effects. The dioxo-form is predicted to be the most stable, with the 2-hydroxy-4-oxo and 2-oxo-4-hydroxy forms being higher in energy by 46 and 52 kJ mol–1, respectively.Keywords
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