Received 5 January 2013
In the title molecule, C20H13F3N2, the benzimidazole unit is close to being planar [maximum deviation = 0.012 (1) Å] and forms dihedral angles of 31.43 (7) and 61.45 (9)° with the 4-(trifluoromethyl)phenyl and 1-phenyl rings, respectively; the dihedral angle between these rings is 60.94 (10)°. In the crystal, C-HF hydrogen bonds link the molecules into chains along the c-axis direction. The CF3 group is rotationally disordered with an occupancy ratio of 0.557 (8):0.443 (8) for the F atoms.
For the properties of related compounds, see: Bu et al. (1996); Cross et al. (1995); Fu et al. (2011); Zhang et al. (2010). For bond lengths and angles in related structures, see: Yoon et al. (2011); Kassim et al. (2012).
Data collection: APEX2 (Bruker, 2008); cell refinement: APEX2 and SAINT (Bruker, 2008); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: PLATON.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: BV2218 ).
Bruker (2008). APEX2, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.
Bu, X. R., Li, H., Derveer, D. V. & Mintz, E. A. (1996). Tetrahedron Lett. 37, 7331-7334.
Cross, E. M., White, K. M., Moshrefzadeh, R. S. & Francis, C. V. (1995). Macromolecules, 28, 2526-2532.
Fu, D. W., Zhang, W., Cai, H. L., Zhang, Y., Ge, J. Z., Xiong, R. G. & Huang, S. P. (2011). J. Am. Chem. Soc. 133, 12780-12786.
Kassim, K., Hashim, N. Z. N., Fadzil, A. H. & Yusof, M. S. M. (2012). Acta Cryst. E68, o799.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Spek, A. L. (2009). Acta Cryst. D65, 148-155.
Yoon, Y. K., Ali, M. A., Choon, T. S., Hemamalini, M. & Fun, H.-K. (2011). Acta Cryst. E67, o1215.
Zhang, W., Chen, L. Z., Gou, M., Li, Y. H., Fu, D. W. & Xiong, R. G. (2010). Cryst. Growth Des. 10, 1025-1027.