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Figure 3 (a) Schematic representation of the supramolecular π-π interactions between HAtrtr molecules belonging to adjacent supramolecular layers. For clarity one layer is represented as pink bonds and all hydrogen atoms have omitted. For inter-centroid distances see Table 2. (b) Crystal packing of the title compound viewed along [001] direction, clearly showing the planar nature of the two-dimensional supramolecular layer. |