Figure 5
Part of the crystal structure of compound (IV), showing the formation of a centrosymmetric R22(10) dimer built from paired N—H⋯O hydrogen bonds. For the sake of clarity, H atoms not involved in the motif shown have been omitted. Atoms marked with an asterisk (*) are at the symmetry position (−x + 1, −y + 1, −z + 1). |