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Figure 2 A perspective view of the intralayer intermolecular hydrogen-bond contacts among molecules in the title compound. Hydrogen bonds and Cl⋯Cl interactions are shown as dashed lines. [Symmetry codes: (i) x+1, y, z; (ii) −x + 1, y+1/2, -z+1/2; (iii) -x+2, y − , −z + ]. |