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Figure 3 Graphical representation of the parallel-displaced sandwich type π interactions of 1 in the solid state, giving rise to the formation of one-dimensional chains along the crystallographic a-axes. All C-bonded hydrogen atoms are omitted for clarity. The sign ∢ refers to the interplanar angle and d gives the averaged distances between interacting molecules. Dotted lines indicate interacting C⋯C atoms as well as interactions between carbon and nitrogen atoms, respectively, with the centroids of the respective adjacent aromatic rings. Symmetry codes: (A) 1 – x, 1 – y, 1 – z. (B) −1 + x, y, z. |