Figure 4
Part of the crystal structure of compound (I) showing the overlap of an inversion-related pair of molecules. For the sake of clarity, the unit-cell outline and all of the H atoms have been omitted. The molecules are viewed normal to the planes of the fused heterocyclic ring system and atoms marked with an asterisk (*) are at the symmetry position (1 − x, 1 − y, 1 − z). |