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Schematic representations of the cage structure and guest potential well for the Ba(2) site in . The fourfold potential minima ( site) are offset by from the cage center ( site).
Heat capacity of - and presented as vs .
Thermal conductivity of - and . The inset shows the same data in linear scales.
Atomic coordinates and thermal and anisotropic-displacement parameters for single-crystal refinement at of : (223), , , , , and . The parameters are not listed here.
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