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Figure 9
Packing diagram for (III)[link], showing the cyclic tetra­mer formation through the combination of π–π and C—H⋯π inter­actions. The extension of the tetra­mers into a one-dimensional ribbon by C—H⋯O inter­actions and into a two-dimensional network by C—H⋯π inter­actions is illustrated. Inter­molecular inter­actions are shown as dashed lines and H atoms not involved in these inter­actions have been omitted for clarity. Ring centroids are indicated with solid circles. [Symmetry codes: (i) −x + 1, −y + 1, −z + 2; (ii) x + 1, y, z; (iii) x, y, z + 1; (v) −x + 1, −y + 2, −z + 1.]

Journal logoSTRUCTURAL
CHEMISTRY
ISSN: 2053-2296
Volume 71| Part 11| October 2015| Pages 1001-1009
doi:10.1107/S2053229615019610
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