Figure 1
Polyhedral representation of (left) the unit-cell structure viewed along the a axis and (right) a (W3SeO12)2− layer along with the Rb+ counter-cations, viewed along the c axis, of Rb2W3SeO12 (3). A W3O15 moiety with a pyramidal selenium atom is indicated by a dashed red line and the net dipole directions of the WO6 octahedra and pyramidal SeO3 are shown. |