Figure 1
The coordination environment of the Sr and Cu sites, showing the hydrogen bonding. Displacement ellipsoids are drawn at the 70% probability level. The shorter Sr—O and Cu—O bonds are shown in black, the longer bonds are unfilled and hydrogen bonds are dashed lines. [Symmetry codes: (i) −x + 1, −y, −z + 1; (ii) −x + , y + , −z + ; (iii) x − , −y + , z − ; (iv) −x + , y + , −z + ; (v) −x + 1, −y, −z; (vi) x − 1, y, z; (x) −x + 2, −y, −z + 1; (xi) −x + , y − , −z + ; (xii) x + , −y − , z + .] |