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Lookup NU author(s): Kathy Guille,
Dr Ross Harrington,
Emeritus Professor Bill Clegg
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Crystals of a second polymorph of violuric acid monohydrate [systematic name: pyrimidine-2,4,5,6(1H,3H)-tetrone monohydrate], C4H3N3O4·H2O, have higher density and a more extensive hydrogen-bonding arrangement than the previously reported polymorph. Violuric acid and water mol-ecules form essentially planar hydrogen-bonded sheets, which are stacked in an offset ABCABC repeat pattern involving no ring-stacking inter-actions. © International Union of Crystallography 2007.
Author(s): Guille K, Harrington RW, Clegg W
Publication type: Article
Publication status: Published
Journal: Acta Crystallographica Section C: Crystal Structure Communications
ISSN (print): 0108-2701
ISSN (electronic): 1600-5759
Publisher: Wiley-Blackwell Publishing, Inc.
PubMed id: 17551193
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