Figure 1
A view of (I), showing the atom-labelling scheme and the completed Ca2+ coordination spheres. Displacement ellipsoids are drawn at the 50% probability level and all H atoms have been omitted for clarity. Atoms with the suffix A are at the symmetry position (−x, y, − z), B at (1 − x, y, − z) and C at (x + 1, y, z). |