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Figure 2
Ellipsoid plot of the O coordination shell about K1 for (a) the HT and (b) the LT forms; atomic parameters for the latter are from Görbitz & Sagstuen (2008BB18). H atoms bonded to O in the shell are included. O10 in the LT form (b) is too far removed from the K atom (3.427 Å) to participate in the coordination.

IUCrJ
Volume 2| Part 1| January 2015| Pages 19-28
ISSN: 2052-2525
doi:10.1107/S2052252514022155