Figure 1
The extended asymmetric unit in I showing the coordination environment of the Ni atoms and the atom-labeling scheme (displacement ellipsoids are drawn at the 30% probability level). C-bound H atoms and uncoordinated water molecules are omitted for clarity. Symmetry codes: (i) −x + 2, −y + 1, −z + 2; (ii) −x + 2, −y + 2, −z + 1; (iii) −x + 1, −y + 3, −z + 1. |