Figure 3
A diagram of the [Hg3O] pyramids in (a) eglestonite (Mereiter et al., 1992) and (b) Hg3AlF6O2H. Hg atoms are dark grey, O atoms are white and H atoms are light grey. The inversion centre is denoted by a small black point. The broken bonds in (a) correspond to the connection to neighbouring Hg atoms of the Hg22+ dumb-bell. |