ACCURATE CALCULATIONS OF THE OXO-HYDROXY TAUTOMERS OF URACIL

被引:48
作者
GOULD, IR [1 ]
HILLIER, IH [1 ]
机构
[1] UNIV MANCHESTER, DEPT CHEM, OXFORD RD, MANCHESTER M13 9PL, LANCS, ENGLAND
来源
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2 | 1990年 / 02期
关键词
D O I
10.1039/p29900000329
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The geometric structures of the three lowest-energy tautomers of uracil have been calculated at the 6-31 G** 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-hydroxy4-oxo and 2-oxo-4-hydroxy forms being higher in energy by 46 and 52 kJ mol-1, respectively.
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页码:329 / 330
页数:2
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