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In scheelite-type La0.667[MoO4], one crystallographically unique position with site symmetry -4.. and an occupancy of 2/3 is found for the La3+ cation. The cation is surrounded by eight O atoms in the shape of a trigonal dodeca­hedron. The structure also contains one [MoO4]2- anion (site symmetry -4..), which is surrounded by eight vertex-attached La3+ cations. The polyhedra around the La3+ cations are inter­connected via common edges, building up a three-dimensional network, in the tetra­hedral voids of which the Mo6+ cations reside.
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