Figure 1
A view of part of the layer structure of (I), showing the asymmetric unit, atom connectivities and coordination environment. Displacement ellipsoids are drawn at the 30% probability level. H atoms have been omitted for clarity. [Symmetry codes: (i) x, −y + ½, z − ½; (ii) x, −y + ½, z + ½; (iii) x + 1, −y + ½, z + ½.] |