Redetermination of 6-amino-5-formyl-1, 3-dimethyluracil monohydrate at 120 K: a polarized molecular structure and two interwoven hydrogen-bonded frameworks

…, M Nogueras, J Cobo, JN Low, C Glidewell

Index: De La Torre, Jose M.; Nogueras, Manuel; Cobo, Justo; Low, John N.; Glidewell, Christopher Acta Crystallographica Section C: Crystal Structure Communications, 2007 , vol. 63, # 11 p. o638-o640

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Abstract

The title compound [systematic name: 6-amino-5-formyl-1, 3-dimethylpyrimidine-2, 4 (1H, 3H)-dione monohydrate], C7H9N3O3· H2O, has been reexamined at 120 K. The improved precision of the intramolecular dimensions provides evidence for a polarized molecular– electronic structure, and the molecular components are linked by one N—H⋯ O and two O— H⋯ O hydrogen bonds into two interwoven three-dimensional frameworks, which are ...