Acta Cryst. (2012). E68, o191-o192  [ doi:10.1107/S1600536811053542 ]

6,6'-Di-tert-butyl-4,4'-dimethoxy-2,2'-[1,3-diazinane-1,3-diylbis(methylene)]diphenol 0.19-hydrate

A. Rivera, D. M. González, J. Ríos-Motta, K. Fejfarová and M. Dusek

Abstract: In the title hexahydropyrimidine derivative, C₂₈H₄₂N₂O₄·0.19H₂O, the 1,3-diazinane ring has a chair conformation with a diequatorial substitution. The asymmetric unit contains one half-organic molecule and a solvent water molecule with occupany 0.095. The molecule lies on a mirror plane perpendicular to [010] which passes through the C atoms at the 2- and 5-positions of the heterocyclic system. The partially occupied water molecule is also located on this mirror plane. The dihedral angle between the planes of the aromatic rings is 17.71 (3)°. Two intramolecular O-HN hydrogen bonds with graph-set motif S(6) are present. No remarkable intermolecular contacts exist in the crystal structure.

Online 21 December 2011

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