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Figure 2 Part of the crystal structure of the title compound viewed down c axis, showing the formation of (14) and (18) dimers. C—H⋯O intermolecular interactions are indicated by dashed lines. Symmetry code: (i) 1 − x,1 − y,1 − z; (ii) 1 − x,1 − y,-z and (iii) −x,-y,1 − z. |