The program WYCKSPLIT calculates the splitting of the Wyckoff position when the symmetry is reduced from one given by the group G to one given by a group H which is a subgroup of G.

As an input data the program needs the numbers of both groups as given in the International Tables for Crystallography, vol.A, and the transformation matrix that relates the basis of the supergroup with that of the subgroup.

If you do not know the numbers of the groups, use the buttons [choose it] to select them from the table with the space groups symbols.

If you do not know the transformation relating both bases, use the link to the other programs on the Bilbao Crystallographic Server to find it.

When all of the input data is complete, click on the button [Show group-subgroup data] to see the list with the Wyckoff positions of the group and select the one for which the splitting should be calculated.

If you are using this program in the preparation of a paper, please cite it in the following form: