Figure 1
The CuII and ErIII coordination environments in (I). Displacement ellipsoids are drawn at the 30% probability level and H atoms have been omitted for clarity. [Symmetry codes: (i) −x + , y − , −z + ; (ii) −x + , y + , −z + ; (iii) −x + 2, y, −z + ; (iv) −x + 2, −y + 2, −z + 1.] |