Acta Cryst. (2009). E65, o42-o43  [ doi:10.1107/S1600536808040828 ]

(1R,3S)-1,1'-(1,3-Dihydro-2-benzofuran-1,3-diyl)bis(1,3-dimethylurea)

B. Maliha, M. I. Tariq, M. N. Tahir, I. Hussain and H. L. Siddiqui

Abstract: In the molecule of the title compound, C₁₄H₂₀N₄O₃, the five-membered ring adopts an envelope conformation with the O atom displaced by 0.207 (3) Å from the plane of the other ring atoms. Intramolecular C-HO hydrogen bonds result in the formation of three five-membered rings having envelope conformations. In the crystal structure, intermolecular N-HO hydrogen bonds link the molecules, forming R₂²(20) ring motifs, which produce two-dimensional polymeric sheets extending along the b axis. There are also two C-H interactions. The H atoms of one of the methyl groups are disordered over two positions and were refined with occupancies of 0.50.

Online 6 December 2008

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