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Acta Cryst. (2013). E69, o1151  [ doi:10.1107/S160053681301636X ]


M. B. Sanders, J. C. Farrokh, J. Hardie and B. C. Chan

Abstract: The title compound, C4H6N2O, displays two predominant hydrogen-bonding interactions in the crystal structure. The first is between the unprotonated imidazole N atom of one molecule and the hydroxy H atom of an adjacent molecule. The second is between the hydroxy O atom of one molecule and the imidazole N-H group of a corresponding molecule. These interactions lead to the formation of a two-dimnensional network parallel to (10-1). C-H...O interactions also occur.

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