Cs2MnF4 is (La,Ba)CuO4 structured and crystallizes in the tetragonal I4/mmm space group. Cs(1) is bonded in a 9-coordinate geometry to four equivalent F(2) and five equivalent F(1) atoms. Mn(1) is bonded to two equivalent F(1) and four equivalent F(2) atoms to form corner-sharing MnF6 octahedra. The corner-sharing octahedra are not tilted. There are two inequivalent F sites. In the first F site, F(2) is bonded in a distorted linear geometry to four equivalent Cs(1) and two equivalent Mn(1) atoms. In the second F site, F(1) is bonded to five equivalent Cs(1) and one Mn(1) atom to form a mixture of distorted edge and corner-sharing FCs5Mn octahedra. The corner-sharing octahedral tilt angles range from 0-3°.
Cs2MnF4 is (La,Ba)CuO4 structured and crystallizes in the tetragonal I4/mmm space group. Cs(1) is bonded in a 9-coordinate geometry to four equivalent F(2) and five equivalent F(1) atoms. All Cs(1)-F(2) bond lengths are 3.07 Å. All Cs(1)-F(1) bond lengths are 3.06 Å. Mn(1) is bonded to two equivalent F(1) and four equivalent F(2) atoms to form corner-sharing MnF6 octahedra. The corner-sharing octahedra are not tilted. Both Mn(1)-F(1) bond lengths are 2.09 Å. All Mn(1)-F(2) bond lengths are 2.17 Å. There are two inequivalent F sites. In the first F site, F(2) is bonded in a distorted linear geometry to four equivalent Cs(1) and two equivalent Mn(1) atoms. In the second F site, F(1) is bonded to five equivalent Cs(1) and one Mn(1) atom to form a mixture of distorted edge and corner-sharing FCs5Mn octahedra. The corner-sharing octahedral tilt angles range from 0-3°.