Acta Cryst. (2002). E58, o942-o945  [ doi:10.1107/S1600536802013405 ]

The supramolecular structure of N-(6-amino-3,4-dihydro-3-methyl-5-nitroso-4-oxopyrimidin-2-yl)glycylglycinate contains a unique O-HN(nitroso) hydrogen bond

J. N. Low, A. Quesada, C. Glidewell, M. A. Fontecha, P. Arranz, M. L. Godino and R. López

Abstract: The molecular structure of the title compound, C₉H₁₂N₆O₅, shows extensive electronic delocalization involving the pyrimidine ring and the attached N atom of the glycylglycinate, the amino and the nitroso groups. A unique O-HN(nitroso) hydrogen bond of 2.748 (2) Å is found in the structure. The supramolecular structure is a three-dimensional network, derived from two sets of antiparallel chains, which link chains of alternating dimers which are formed by the action of two different crystallographic centres of symmetry.

Online 31 July 2002

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