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Figure 2 Packing diagram of the title compound viewed perpendicular to the ac plane. Phenyl rings are reduced to the ipso carbons for clarity. Intramolecular hydrogen bonds are drawn as thin and intermolecular hydrogen bonds as thick dashed lines; the latter are numbered according to their order in the relevant Table. H bonds #4 are omitted because they represent the weak components of asymmetric three-centre interactions. |