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Figure 2 Rubidium polyhedra of Rb1v, Rb1 and Rb1viii joined by edges O6aii, O2bix and O2bvii, O6aiv with Rb—Rb distance of 4.1988 (3) Å. Symmetry codes: (i) x − 1, −y + , z + ; (ii) x − 1, y, z; (iii) −x + 1, −y, −z + 1; (iv) x − 1, −y + , z − ; (v) x, −y + , z + ; (vi) x − 1, y, z − 1; (vii) −x + 1, −y, −z; (viii) x, −y + , z − ; (ix) −x + 1, y + , −z + ; (x) −x + 1, y + , −z − . |