Figure 2
The packing structure of (II) with a [101] sheet centred around the inversion centre at (½,1,0). The weak F1⋯H7B contacts have been included. H atoms (H2 and H5) not participating in hydrogen bonding have been omitted. Atoms labelled with the suffix A lie at positions (1 − x, 2 − y, −z), B at (x, 1 + y, z), C at (½ − x, ½ + y, ½ − z), D at (½ − x, −½ + y, ½ − z), E at (1 − x, 1 − y, −z), F at (½ + x, − y, −½ + z) and G at (½ + x, − y, −½ + z). |