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Figure 3 π-electron—π-electron interactions between the anthracene units, propagating parallel to (1, 0, 1), with the centroid-centroid separations of 3.6871 (19) Å (as measured between x, y, z and (iv) = − x, − y, 1 − z). Symmetry codes: (i) −x, y, − z; (iv) − x, − y, 1 − z; (v) + x, − y, + z; (vi) 1 − x, y, − z; (vii) 1 + x, y, 1 + z; (viii) − + x, − y, − + z; (ix) − − x, − y, −z; (x) −1 + x, y, −1 + z; (xi) −1 − x, y, − − z. |