Acta Cryst. (2005). E61, o2349-o2351  [ doi:10.1107/S1600536805012791 ]

5-tert-Butyl-4-bromo-1,2-dihydro-1H-pyrazol-3(2H)-one monohydrate

D. E. Lynch and I. McClenaghan

Abstract: The structure of the title compound, C₇H₁₁BrN₂O·H₂O, exhibits an elaborate hydrogen-bonding network involving pyrazole N-HO dimers and two other hydrogen-bonding motifs, both including water molecules. One motif is a distorted hexagonal R₃⁵(11) graph set, while the other is a distorted octagonal boat conformation R₆⁴(14) graph set.

Online 6 July 2005

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