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Figure 1 The coordination environment of the potassium(I) cation in the title compound, showing the atom-numbering scheme. Displacement ellipsoids are drawn at the 30% probability level. Intramolecular hydrogen bonds are shown as dashed lines. Symmetry codes: (i) x, y, z + 1; (ii) x, −y + , z + ; (iii) −x + , y, z + ; (iv) −x, −y + 1, −z + 1. |