Figure 1
A view of the anion of (I). Displacement ellipsoids are shown at the 50% probability level. Atoms As1, As2, O1, O8, O11, O13, O19, O23, O25, O29, O31, O36, O39, W2, W5 and W9 lie on the mirror plane. Atoms marked with the suffix A are at the symmetry position (x, −y, z). |