Figure 7
A packing diagram for polymorph (Ib), viewed perpendicular to (001), in the region z ≃ . H atoms have been omitted and the molecules are `halved' to C—CBr3 groups. The two shortest Br⋯Br interactions are indicated by thick dashed lines and numbered according to the sequence of entries in Table 4. Labelled Br atoms belong to the asymmetric unit. |