Figure 6
Packing diagram of compound 2a showing two zigzag chains of molecules parallel to the b axis; the lower chain is centred in the mirror plane at y = 0.75 and the upper chain in the plane at y = 0.25. Dashed lines indicated Br⋯Br contacts (or, just visible, Au⋯Br contacts linking the two chains in the direction into the paper). Atom labels indicate the asymmetric unit. |