Figure 2
The coordination environment of the Sn1 and Sn2 atoms. Including only bond lengths < 2.7 Å, two distorted seesaw-type polyhedra are observed. Edge sharing leads to the formation of dimeric Sn2O6 clusters (solid lines). By considering the Sn2—O3iii bond of 2.726 (3) Å (dashed line), one distorted seesaw SnO4 and one distorted square-pyramidal SnO5 polyhedron are observed (the shaded area marks the basal form formed by O1, O3i, O3iii and O6iv). Edge sharing leads to tetrameric Sn4O12 clusters. [Symmetry codes: (i) −x, −y + 1, −z + 1; (ii) x − 1, y, z + 1; (iii) x − 1, y, z; (iv) −x, −y + 2, −z; (vi) −x − 1, −y + 1, −z + 1; (vii) x − 1, y − 1, z + 1; (viii) −x, −y + 1, −z.] |