Symmetry Frequencies (cm-1) Animation*
Au 195 click
Ag 198 click
Ag 375 click
Ag 538 click
Ag 553 click
Eu** 599 click
Eg** 663 click
Au 669 click
Eg** 802 click
Au 825 click
Ag 868 click
Au 3848 click
Ag 3851 click

*All the available animations are  in .GIF format

**For modes with degenerate movements, just one direction was considered to perform the animation

The primitive cell of katoite has 116 atoms, so a representative frag of the crystal was used to prepare the animations of the associated movement with each wavenumber. This frag consists of a central octahedron surrounded by six of the eight closest octahedra. The two excluded groups were originally situated in opposite vertices of the cube (click to see explanation). Only the central octahedron is free, the others were "froozen" attributing  very large masses to their atoms. The manipulation of the figures was done using Moldraw, and the animations were obtained using POVRAY and Animation Shop3.