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Figure 2 The arrangement of the molecules in the crystal structure, a perspective view in an oblique direction. Weak intermolecular hydrogen bonds are represented by dashed lines and the π-π stacking interactions by dotted lines. Cg1 and Cg2 denote the centroids of the N1/C11—C15 and N2/C21—C25 pyridine rings, respectively. For clarity, H atoms that are not involved in the discussed interactions have been omitted. [Symmetry codes: (i) x − 1, y, z; (ii) x + 1, y, z.] |