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Figure 13 Part of the crystal structure of (5), which shows the formation of a chain of anions along [100]. This chain contains fused R22(8) and R44(20) rings. For the sake of clarity, H atoms bonded to C atoms are omitted. The atoms marked with an asterisk (*), hash (#) or dollar sign ($) are at the symmetry positions (1 + x, y, z), (1 - x, 1 - y, 1 - z) and (2 - x, 1 - y, 1 - z), respectively.

© International Union of Crystallography 2003