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Figure 2 . Head to tail dimers of (I) formed by π–π contacts (black dotted lines) augmented by C—-H⋯O hydrogen bonds (blue dashed lines). The blue sphere represents the centroid of the the C5⋯C8,C9,C10 ring, the red and green spheres those of the C1, C8, C9, C11, C12, N1 and C1⋯C4, C9, C10 rings respectively of an adjacent molecule. The symmetry operation linking the two molecules is 3/2-x, 3/2-y, 1-z. |
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