Figure 2
(a) View along the [01] axis (b and c axes are therefore projected onto the view plane) of the structure of (I), showing the polyoxometalate anionic chains separated by the H2DABCO2+ cations and the water molecules. (b) Projection along the [100] axis of the structure of (III) (Fang et al., 2004), illustrating the two different orientations of the polyoxometalate chains and the parallel-like alignment of the H2DABCO2+ cations with the chains. |