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Example of Hirshfeld surface around a molecule in the crystal. The surface is colored according to the type of atom contributing most to the spherical electron density: carbon, hydrogen and oxygen are in black, grey and red, respectively. A symmetry-related molecule which is involved in some O⋯O interaction is shown next to the surface. The ketone compound is octamethyl-1,4-cyclohexanedione of refcode OMCHDO (Hoffmann & Hursthouse, 1976 ▸).
