Figure 2
(a) Intermolecular short contacts between one molecule of conformation A of (I) (coloured grey in the electronic version of the paper) and another molecule with the same conformation at (−x + 1, −y, −z + 1). (b) The crystal packing of (I), showing the hydrogen-bond network (dashed lines, in red in the electronic version of the paper). (c) The aromatic rings that constitute the weak intermolecular π–π interactions, and their calculated centroids where highlighted. (Conformations B and C are coloured blue and green, respectively, in the electronic version of the paper.) |