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inorganic compounds
In the title compound, three Sb atoms are in octahedral coordination and there is a 50/50 disorder of Sb and Ti in trigonal bipyramidal coordination. These polyhedra form an open network with the Rb+ ions in two types of channels, both types running in perpendicular directions, along [110] and [1
0]. The structure is pseudo-tetragonal and similar to the cubic pyrochlore structure.
0]. The structure is pseudo-tetragonal and similar to the cubic pyrochlore structure.
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