CsBa2Cr2F11 crystallizes in the tetragonal I4/mmm space group. Cs(1) is bonded in a body-centered cubic geometry to eight equivalent F(2) atoms. Ba(1) is bonded to four equivalent F(3) and eight equivalent F(2) atoms to form BaF12 cuboctahedra that share corners with four equivalent Ba(1)F12 cuboctahedra, faces with four equivalent Ba(1)F12 cuboctahedra, and faces with four equivalent Cr(1)F6 octahedra. Cr(1) is bonded to one F(1), one F(3), and four equivalent F(2) atoms to form CrF6 octahedra that share  a cornercorner with one Cr(1)F6 octahedra and faces with four equivalent Ba(1)F12 cuboctahedra. The corner-sharing octahedra are not tilted. There are three inequivalent F sites. In the first F site, F(1) is bonded in a linear geometry to two equivalent Cr(1) atoms. In the second F site, F(2) is bonded in a distorted single-bond geometry to one Cs(1), two equivalent Ba(1), and one Cr(1) atom. In the third F site, F(3) is bonded in a single-bond geometry to four equivalent Ba(1) and one Cr(1) atom.
CsBa2Cr2F11 crystallizes in the tetragonal I4/mmm space group. Cs(1) is bonded in a body-centered cubic geometry to eight equivalent F(2) atoms. All Cs(1)-F(2) bond lengths are 3.16 Å. Ba(1) is bonded to four equivalent F(3) and eight equivalent F(2) atoms to form BaF12 cuboctahedra that share corners with four equivalent Ba(1)F12 cuboctahedra, faces with four equivalent Ba(1)F12 cuboctahedra, and faces with four equivalent Cr(1)F6 octahedra. All Ba(1)-F(3) bond lengths are 3.06 Å. All Ba(1)-F(2) bond lengths are 2.83 Å. Cr(1) is bonded to one F(1), one F(3), and four equivalent F(2) atoms to form CrF6 octahedra that share  a cornercorner with one Cr(1)F6 octahedra and faces with four equivalent Ba(1)F12 cuboctahedra. The corner-sharing octahedra are not tilted. The Cr(1)-F(1) bond length is 1.95 Å. The Cr(1)-F(3) bond length is 1.94 Å. All Cr(1)-F(2) bond lengths are 1.95 Å. There are three inequivalent F sites. In the first F site, F(1) is bonded in a linear geometry to two equivalent Cr(1) atoms. In the second F site, F(2) is bonded in a distorted single-bond geometry to one Cs(1), two equivalent Ba(1), and one Cr(1) atom. In the third F site, F(3) is bonded in a single-bond geometry to four equivalent Ba(1) and one Cr(1) atom.