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The packing diagram viewed along the b axis shows π-stacked dimers that are separated by 3.475 (5) Å (centroid to centroid shown as a blue dashed line). A staircase-like linear chain forms from additional π-stacking through the bezenoid rings (3.761 (2) Å). Oxygen atoms are shown in red, nitrogen atoms in blue, carbon atoms in red and the hydrogen atoms in white.
