The two imidazole rings in the title compound, C8H10N4O, are almost coplanar, having an angle of 2.3 (2)° about the C-C bond connecting the rings. the conformation adopted is such that the nitrogen substituents (-H and -CH2CH2OH) are in a trans orientation. the molecules are connected by intermolecular O-H. . .O and N-H. . .N hydrogen bonds to yield an arrangement of pairs of molecules reminiscent of side-by-side stacks of crinkled ribbon.
G. Lin et al., "1-Hydroxyethyl-2,2′-biimidazole," Acta Crystallographica Section C: Crystal Structure Communications, Wiley-Blackwell, Jan 1999.
The definitive version is available at http://dx.doi.org/10.1107/S0108270198017387
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