Figure 2
Carbonyl C4=O4⋯Cg interactions (Cg1 and Cg2 are the centroids of the N13/N/14/C16–C18 and N15/N16/C21–C23 rings, respectively) and quinonoid carbonyl–metallic carbonyl C4=O4⋯C1i interactions forming C(6) chains along the c axis. Interactions are indicated by dotted lines. [Symmetry code: (i) x, −y + , z + ; (ii) x, −y + , z − .] |