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Figure 3 A presentation of hydrogen bonds topology starting with the formation of cationic pairs (a), larger structural segments 'A+4C' (b), revealing a role of water molecules for further connections of 'A+4C' units with additional two cationic pairs (c) leading to the final structure in which each of the cationic pairs is shared by two anions (d). Anions are drawn in green, cationic pairs in red-orange or magenta-cyan combination, and water molecules are represented by blue spheres. Hydrogen atoms have been omitted for clarity. |