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International Union of Crystallography, Acta Crystallographica Section E: Structure Reports Online, 7(69), p. o1159-o1159, 2013

DOI: 10.1107/s1600536813016814

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5-Nitro-1,3-bis­(prop-2-yn­yl)-1H-1,3-benzimidazol-2(3H)-one

This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

The title compound, C13H9N3O3, crystallizes with two identical but differently oriented molecules in the asymmetric unit, the dihedral angle between the fused-ring systems of the two molecules being 64.39(7)°. The two prop-2-ynyl chains are located on opposite sides of the molecule and are nearly perpendicular to the fused ring plane, as indicated by the C-N-C-C torsion angles in the range 106.0(3)-113.4(3)°. In the crystal, the two molecules are linked through C-H [.] O hydrogen bonds into dimers, which are subsequently linked by further C-H [.] O interactions, building a three-dimensional network.