Crystal structure of bis­(prop-2-yn-1-yl) 5-nitro­isophthalate

The whole mol­ecule of the title compound, C(14)H(9)NO(6), is generated by twofold rotation symmetry; the twofold axis bis­ects the nitro group and the benzene ring. The nitro group is inclined to the benzene ring by 14.42 (9)°. The prop-2-yn-1-yl groups are inclined to the benzene ring by 13 (2)° and to each other by 24 (3)°; one directed above the plane of the benzene ring and the other below. In the crystal, mol­ecules are linked via pairs of C—H⋯O hydrogen bonds, forming inversion dimers with an R (2) (2)(18) ring motif. The dimers are linked by further C—H⋯O hydrogen bonds, forming sheets lying parallel to (100).