Received 12 December 2011
In the title compound, C12H6F2N2O2, the 2,2-difluoro-1,3-benzodioxole ring system is approximately planar [maximum deviation = 0.012 (2) Å] and its mean plane is twisted with respect to the pyrrole ring, making a dihedral angle of 2.51 (9)°. In the crystal, N-HN hydrogen bonds link the molecules into chains running along the a axis. - stacking is also observed between parallel benzene rings of adjacent molecules, the centroid-centroid distance being 3.7527 (13) Å.
Data collection: RAPID-AUTO (Rigaku, 1998); cell refinement: RAPID-AUTO; data reduction: CrystalClear (Rigaku/MSC, 2002); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: XU5407 ).
The authors thank the Project of Innovation Service Platform of Heilongjiang Province (PG09J001) and Heilongjiang University, China, for supporting the work.
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