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Figure 9
The K+ cations with CN = 7, showing the coordination environments of (a) atoms K5 and K6 in (V), (b) K2 and K3 in (VI), and (c) K1 and K2 in (II). [Symmetry codes for (V): (i) −x + 1, −y + 1, −z + 1; (vii) x + 1, −y + [{3\over 2}], z − [{1\over 2}]; (viii) x + 1, y, z; (ix) x − 1, −y + [{3\over 2}], z + [{1\over 2}]; (x) −x, −y + 1, −z + 2. Symmetry codes for (VI): (ii) x − 1, y, z; (iii) x − [{1\over 2}], y + [{1\over 2}], z; (iv) x, −y + 1, z − [{1\over 2}]; (v) x − [{1\over 2}], −y + [{3\over 2}], z − [{1\over 2}]; (vi) x + [{1\over 2}], −y + [{3\over 2}], z − [{1\over 2}]. Symmetry codes for (II): (i) −x + 1, −y + 1, −z + 1; (ii) −x + 1, −y + 2, −z + 1; (iii) x − [{1\over 2}], −y + [{3\over 2}], z − [{1\over 2}]; (iv) x + [{1\over 2}], −y + [{3\over 2}], z − [{1\over 2}]; (v) −x + [{3\over 2}], y − [{1\over 2}], −z + [{1\over 2}]; (vi) −x + [{3\over 2}], y + [{1\over 2}], −z + [{1\over 2}].]

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