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Figure 3 Part of the crystal structure of (I), showing the formation of the (101) sheet generated by the hydrogen bonds between the anions. Hydrogen bonds are shown as dashed lines. For the sake of clarity, H atoms and intermolecular hydrogen bonds not involved in the motif have been omitted. Atoms marked with a hash(#) or a dollar sign($) are at the symmetry positions ( + x, y, − z) and (x, − y, − + z), respectively. |