Received 7 August 2009
In the racemic title compound, C34H22Br2N2S·CDCl3, pairs of diquinoline host molecules form centrosymmetric brick-like dimers utilizing three different aryl edge-to-face interactions (EF1-3). The dimeric (EF)6 (i.e. 2 × EF1-3) building blocks pack with the deuterochloroform guest molecules positioned near each of their corners. The Cl atoms of the latter are disordered over two sets of sites in a 0.53 (2):0.47 (2) ratio.
The solvent-free C34H22Br2N2S molecule crystallizes in space group C2/c exhibiting a layer structure that does not contain (EF)6 bricks (Alshahateet et al., 2008). These bricks are, however, present in five alternative inclusion crystal structures formed by the same host (Alshahateet et al., 2008). Similar dimeric (EF)6 building blocks have also been found in crystal structures of other structurally related racemic diquinoline molecules (Ashmore et al., 2004, 2009).
Data collection: CAD-4 Manual (Schagen et al., 1989); cell refinement: CAD-4 Manual; data reduction: CAD-4 Manual; program(s) used to solve structure: SIR92 (Altomare et al., 1994); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and CrystalMaker (CrystalMaker, 2005); software used to prepare material for publication: SHELXL97.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: HB5037 ).
This research was supported by the Australian Research Council.
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