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Figure 3 Part of the crystal structure of (I), viewed down the b axis, showing the formation of a [1 0 0] (8) chain built from C—H⋯O hydrogen bonds. For clarity, H atoms not involved in the motifs shown have been omitted. Dashed lines indicate hydrogen bonds [symmetry codes: (*)1/2 + x,1/2-y,-z; (#)- + x,1/2-y,-z; (&)1 + x,y,z]. |