KCuF3 crystallizes in the tetragonal I4/mcm space group. K(1) is bonded in a square co-planar geometry to four equivalent F(2) atoms. Cu(1) is bonded in a square co-planar geometry to two equivalent F(1) and two equivalent F(2) atoms. There are two inequivalent F sites. In the first F site, F(1) is bonded in a linear geometry to two equivalent Cu(1) atoms. In the second F site, F(2) is bonded in a 3-coordinate geometry to two equivalent K(1) and one Cu(1) atom.
KCuF3 crystallizes in the tetragonal I4/mcm space group. K(1) is bonded in a square co-planar geometry to four equivalent F(2) atoms. All K(1)-F(2) bond lengths are 2.59 Å. Cu(1) is bonded in a square co-planar geometry to two equivalent F(1) and two equivalent F(2) atoms. Both Cu(1)-F(1) bond lengths are 1.92 Å. Both Cu(1)-F(2) bond lengths are 1.87 Å. There are two inequivalent F sites. In the first F site, F(1) is bonded in a linear geometry to two equivalent Cu(1) atoms. In the second F site, F(2) is bonded in a 3-coordinate geometry to two equivalent K(1) and one Cu(1) atom.