Acta Cryst. (2004). E60, o1488-o1490  [ doi:10.1107/S1600536804018690 ]

Dimethyl N,N'-(1,2-phenylene)dicarbamate

E. V. García-Báez, B. A. López-Romero, F. J. Martínez-Martínez, H. Höpfl and I. I. Padilla-Martínez

Abstract: The title compound, C₁₀H₁₂N₂O₄, crystallizes in the monoclinic non-centrosymmetric space group Pn with Z = 2. The two methyl carbamate groups, -N(H)-C(=O)-OCH₃, are twisted away from the aromatic ring mean plane, but form a semiflexible eight-membered cavity involving the atoms of the MeO-C(=O)-N(H)-CH₂-CH₂-N(H)-C(=O)-OMe group. The NH groups act as hydrogen-bond donors and the C=O groups as acceptors to form intermolecular N-HO hydrogen bonding with an R₂¹(7) motif, generating extended ribbons along the b direction.

Online 7 August 2004

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