Acta Cryst. (2013). E69, o647 [ doi:10.1107/S1600536813008027 ]
Abstract: In an effort to discover new potential boron-dipyrromethene (BODIPY) dyes, the title compound, C19H17BF2N4O4, was prepared from 2,4-dimethylpyrrole, 3,5-dinitrobenzaldehyde and boron trifluoride in a one-pot reaction. The BODIPY fragment is nearly planar, with a maximum deviation from the least-squares plane of 0.251 (2) Å, and the benzene ring is inclined at a dihedral angle of 86.8 (6)° to the BODIPY mean plane. In the crystal, pairs of C-HF hydrogen bonds connect neighbouring molecules into inversion dimers, which are linked by further strong C-HF interactions, forming a supramolecular layered array parallel to the bc plane.
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