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Figure 2 Cationic surrounding of the isolated ortho-oxomolybdate(VI) tetrahedra [MoO4]2– in Scheelite-type NaNd[MoO4]2 (ellipsoids are drawn at 90% probability level, symmetry codes for O: x, y, z; (xi) –y + , x + , –z + ; (xii) y–1/4, –x + , z + ; (xiii) –x, –y + , z; symmetry codes for Na/Nd: (iii) x–1/2, y, –z + ; (iv) –x + , –y + , –z + ; (v) –y + , x–1/4, –z + ; (vi) y–3/4, –x + , –z + ; (vii) x–1/2, y–1/2, z + ; (ix) –x, –y, –z + 1; (x) –x, –y + 1, –z + 1; (xiv) x + , y + , z–1/2) |