Figure 1
A view of the framework structure of (I) along (a) [100] and (b) [101]. Protonated AsO4 tetrahedra are corner-linked to slightly distorted ScO6 octahedra. A system of intersecting tunnels hosts the charge-balancing Cs+ cations (dark spheres). The unit cell is outlined, and the hydrogen bonding is shown in (b) (dashed lines). |