Figure 1
The crystal structures for I (top) and II (bottom). The left panel shows the dimeric fragments, with displacement ellipsoids at the 30% probability level. The orientation emphasizes the conformation of the centrosymmetric end-to-end azide bridge. The right panel shows part of the crystal packing, with a polyhedral representation for the metal centres. The orientation emphasizes the inter-chain π–π interactions between dmbpy ligands. |