Dear crystallography community,
in compounds which containing F- and O2- anions I think usually the O2- prefere a tetrahedral environment and the F- a triangle of cations. If you want to write "O2- prefere the tetrahedron and F- the triangle" in a manuscript, some references are needed.
So my question is, do somebody know a review article about coordinationsnumbers in ionic solid state compounds, which could be cited?
Best regards from Germany