Figure 4
The nine-coordinated K+ cation in the large `L' site within the interlayer space in the structure of KNaCuP2O7. Displacement ellipsoids are drawn at 50% probability level. [Symmetry codes: (i) 1 + x, y, z; (ii) 1 − x, 1 − y, −z; (iii) − x, − + y, − z; (iv) − x, − + y, − z; (v) 1 − x, 1 − y, 1 − z.] |