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Figure 3
Coordination polyhedra around the A2 site in (I) (left), (II) (centre) and (III) (right). [Symmetry codes: (i) −x + y, −x + 1, z; (ii) −y + 1, x − y + 1, z; (iii) x − y, x, −z; (iv) y, −x + y + 1, −z; (v) x, y + 1, z; (vi) y, −x + y + 1, z + ![]() ![]() ![]() ![]() ![]() |