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Acta Cryst. (2013). E69, o614-o615
[ doi:10.1107/S1600536813007903 ]

5,11-Ditosyl-5H,11H-dibenzo[b,f][1,5]diazocine-6,12-dione acetic acid hemisolvate

N. Abbassi, O. Bassou, E. M. Rakib, M. Saadi and L. El Ammari

Abstract: The molecular structure of the title compound, C28H22N2O6S2·0.5CH3COOH, is built up from three fused rings, two six and one eight membered. The eight-membered ring shows a boat conformation and the dihedral angle between the two benzene groups attached thereto is 66.43 (11)°, resulting in a V-shaped geometry. Two tosyl substituents are bound to the N atoms. The planes through the tolyl rings are roughly perpendicular, as indicated by the dihedral angle of 82.44 (12)°. In the crystal, the molecule and its inversion-related symmetry-equivalent are linked to the acetic acid solvent molecule by non-classical O-H...O and C-H...O hydrogen bonds. Two half-occupied acetic acid solvent molecules are disordered at the same site and linked by a center of symmetry.

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