Figure 1
The asymmetric unit of (I), showing the atom-labeling scheme. Displacement ellipsoids are shown at the 50% probability level. The coordination polyhedron of the potassium ion is shown in the inset. [Symmetry codes: (i) −x, −y + 1, −z + 1; (ii) −x, −y + 2, −z + 1; (iii) x, y, z − 1; (iv) −x + 1, −y + 2, −z + 1.] |