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Figure 1
The independent components of the structure of compound (I)[link], showing the atom-labelling scheme, the complete central 4,4′-bipy unit and the hydrogen bond (shown as a dashed line) between the cation and anion within the selected asymmetric unit. Displacement ellipsoids are drawn at the 30% probability level and the atoms marked with `a' are at the symmetry position (−x + [{1\over 2}], y, −z + 1). The partially occupied water sites have refined occupancies as follows: O5A 0.522 (6), O5B 0.478 (6), O6A 0.34 (3) and O6B 0.16 (3).

Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890
Volume 72| Part 9| September 2016| Pages 1246-1250
https://doi.org/10.1107/S2056989016012160
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