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Figure 8
Part of the crystal structure of com­pound (IIIb)[link], showing the formation of a cyclic centrosymmetric motif built from C—H⋯π hydrogen bonds and linking adjacent [010] chains. Hydrogen bonds are drawn as dashed lines and, for the sake of clarity, H atoms not involved in the motif shown have been omitted. The atom marked with an asterisk (*) is at the symmetry position (−x + 1, −y + 1, −z + 1).

Journal logoSTRUCTURAL
CHEMISTRY
ISSN: 2053-2296
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