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Acta Cryst. (2012). E68, o63  [ doi:10.1107/S1600536811052196 ]

{2-[(3,5-Dimethyl-2H-pyrrol-2-ylidene-[kappa]N)(4-nitrophenyl)methyl]-3,5-dimethyl-1H-pyrrol-1-ido-[kappa]N}difluoridoboron

A.-J. Cui, J. An, F.-A. Sun, M. Hu and J. Qin

Abstract: In an effort to discover novel and potential boron-dipyrromethene (BODIPY) dyes, the title compound, C19H18BF2N3O2, was prepared from 2,4-dimethylpyrrole, 4-nitrobenzaldehyde and BF3·Et2O in a one-pot reaction. There are two independent molecules, A and B, in the asymmetric unit in which the dihedral angles between the benzene ring and boron-dipyrromethene mean plane have significantly different values [82.71 (8)° for molecule A and 73.16 (8)° for molecule B]. Intermolecular C-H...[pi] interactions help to stabilize the crystal structure.

Online 10 December 2011


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