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Figure 1
View down [001] of a slice (−0.15 ≤ z ≤ 0.15) of the structure of (I). Displacement ellipsoids are displayed at the 50% probability level. [Symmetry code: (i) 1 − x, 1 − y, −z.] Note that Na1 lies on a fourfold axis and K1 has [\overline{4}] site symmetry.

Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890
Volume 73| Part 2| February 2017| Pages 188-191
https://doi.org/10.1107/S2056989017000494
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