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Figure 5
(a) Partial structure showing the Rb–Na–Cl salt structure along [001], occupying the larger channel. (b) Extended salt structural unit in the larger channel with polyhedral representation showing the corner-sharing {Na4Cl8} units. (c) The arrangement of two corner-sharing {Na4Cl8} units centered in the faces of a `cubane'-like fragment. (d) Fragment of the Rb–Na–Cl salt structure, showing the polyhedral arrangement of Cl and Na. Displacement ellipsoids are presented at the 90% probability level. |

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