(IUCr) Crystallography Journals Online

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Acta Cryst. (2009). E65, o459 [ doi:10.1107/S1600536809003730 ]

1,4-Bis(fluoromethyl)benzene

H.-K. Fun, R. Kia, P. S. Patil and S. M. Dharmaprakash

Abstract: The title compound, C₈H₈F₂, lies across a crystallographic inversion centre. The structure features short CF [2.8515 (18) Å] and FF [2.490 (4) Å] contacts, which are significantly shorter than the sum of the van der Waals radii of these atoms. The F atom and methylene H atoms are disordered over two positions with a site-occupancy ratio of 0.633 (3):0.367 (3). In the crystal structure, intermolecular C-HF interactions link neighboring molecules into infinite chains along the b axis. In addition, C-H [pi] interactions link these molecules along [10 $\\overline{1}$ ], forming a two-dimensional network parallel to (101).

Online 4 February 2009