Figure 2
(a) A view down the a axis of the zigzag –Cu—N≡C—Ni—C≡N—Cu– chains, extending in the c direction. (b) A view down the c axis of the mutually perpendicular arrangement of the –Cu–4,4′-bpy–Cu–4,4′-bpy– chains (the 4,4′-bpy H atoms have been omitted for clarity). (c) The crystal packing of (I), viewed along the c axis. The O—H⋯N hydrogen bonds are shown as dashed lines; see Table 2 for details (the 4,4′-bpy H atoms have been omitted for clarity). |