Figure 7
Part of the crystal structure of compound (II) showing the linkage of an inversion-related pair of cations by two independent C—H⋯O hydrogen bonds, drawn as dashed lines. For the sake of clarity, the anions, the H atoms bonded to those C atoms that are not involved in the motif shown, and the unit-cell outline have been omitted. The atoms marked with an asterisk (*) are at the symmetry position (1 − x, 1 − y, 2 − z). |