Figure 10
Part of the crystal structure of (VI) showing the formation of a (001) anion sheet built from two types of ring and two types of ring. For the sake of clarity the H atoms bonded to C atoms are omitted, as are the methyl and phenyl groups in the cations and the intra-anion O—H⋯O hydrogen bonds. The atoms marked with an asterisk (*), a hash (#) or a dollar sign ($) are at the symmetry positions (-1 + x, y, z), (x, -1 + y, z) and (1 + x, 1 + y, z), respectively. |