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Figure 4
Calculated independent atom model electron density (Momma & Izumi, 2011BB11) of the K-paracelsian structure. Yellow areas illustrate positions in the cage with minimum electron density.

IUCrJ
Volume 6| Part 1| January 2019| Pages 66-71
ISSN: 2052-2525
https://doi.org/10.1107/S2052252518016111