The X-ray crystal structure of the title compound, lithium 1,2,3,6-tetrahyd
ro-2,6-dioxo-4-pyrimidinecarboxylate monohydrate, Li+.C5H3N2O4-.H2O, was re
determined at a temperature of 110 (2) K. It was now possible to locate all
H atoms in the difference Fourier map. The hydrogen-bonding pattern can no
w be completely described, as well as the coordination mode of the water mo
lecule to the lithium center.