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Figure 2 Crystal packing arrangement viewed approximately along the c-axis. H atoms bonded to C have been left out for clarity. Na+ is yellow, K+ is light blue with K1 at the centre of the unit cell and K2 at the cell edge. Hydrogen bonds are shown as black dotted lines while ligand coordination is indicated in orange for three selected metal ions. The arrow points to H31W, which is involved in a four-center hydrogen bond.

Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890
Volume 64| Part 4| March 2008| Pages m507-m508
doi:10.1107/S1600536808005266
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