Received 13 December 2012
The title compound, C18H18Br2N2, is centrosymmetric with the mid-point of the central C-C bond of the butyl group located on an inversion center. The terminal benzene ring is approximately perpendicular to the central butyl plane [dihedral angle = 71.9 (8)°]. No hydrogen bonding or aromatic stacking is observed in the crystal.
For applications of diimine-metal catalysts, see: Johnson et al. (1995); Killian et al. (1996); Popeney & Guan (2010); Popeney et al. (2011); Yuan et al. (2005). For a related structure, see: Zhang et al. (2013).
Data collection: APEX2 (Bruker, 2007); cell refinement: SAINT (Bruker, 2007); data reduction: SAINT; 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: XU5666 ).
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Zhang, C., Wu, G.-F., Huang, B.-M. & Lu, X.-Q. (2013). Acta Cryst. E69, o216.