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Figure 4 Representation of the coordination polyhedron around Y2. Ellipsoids are drawn at the 60% level. Symmetry codes: [(i) 1 − x,-y, 1 − z; (ii) −1 + x,y,z; (iii) −x,-y,1 − z; (iv) 1 − x,1 − y,1 − z; (v) x,1 + y,z; (vi) 1 + x,1 + y,z; (vii) 1 − x,-y,-z.] |