CsLu4F13 crystallizes in the monoclinic Cm space group. There are three inequivalent Cs sites. In the first Cs site, Cs(1) is bonded in a 6-coordinate geometry to one F(17), one F(18), two equivalent F(10), and two equivalent F(9) atoms. In the second Cs site, Cs(2) is bonded in a 6-coordinate geometry to one F(18), one F(19), two equivalent F(10), and two equivalent F(11) atoms. In the third Cs site, Cs(3) is bonded in a 6-coordinate geometry to one F(19), one F(20), two equivalent F(11), and two equivalent F(12) atoms. There are eight inequivalent Lu sites. In the first Lu site, Lu(1) is bonded to one F(10), one F(13), one F(18), one F(2), one F(21), one F(22), and one F(6) atom to form a mixture of corner and edge-sharing LuF7 pentagonal bipyramids. In the second Lu site, Lu(2) is bonded to one F(11), one F(14), one F(19), one F(22), one F(23), one F(3), and one F(7) atom to form a mixture of corner and edge-sharing LuF7 pentagonal bipyramids. In the third Lu site, Lu(3) is bonded to one F(12), one F(15), one F(20), one F(23), one F(24), one F(4), and one F(8) atom to form distorted LuF7 pentagonal bipyramids that share  a cornercorner with one Lu(2)F7 pentagonal bipyramid,  a cornercorner with one Lu(3)F7 pentagonal bipyramid,  a cornercorner with one Lu(4)F7 pentagonal bipyramid,  a cornercorner with one Lu(7)F6 pentagonal pyramid,  an edgeedge with one Lu(3)F7 pentagonal bipyramid, and  an edgeedge with one Lu(7)F6 pentagonal pyramid. In the fourth Lu site, Lu(4) is bonded to one F(1), one F(16), one F(17), one F(21), one F(24), one F(5), and one F(9) atom to form LuF7 pentagonal bipyramids that share  a cornercorner with one Lu(1)F7 pentagonal bipyramid,  a cornercorner with one Lu(3)F7 pentagonal bipyramid,  a cornercorner with one Lu(4)F7 pentagonal bipyramid,  a cornercorner with one Lu(8)F6 pentagonal pyramid,  an edgeedge with one Lu(4)F7 pentagonal bipyramid, and  an edgeedge with one Lu(8)F6 pentagonal pyramid. In the fifth Lu site, Lu(5) is bonded to one F(2), one F(25), one F(26), two equivalent F(10), and two equivalent F(6) atoms to form LuF7 pentagonal bipyramids that share  a cornercorner with one Lu(6)F7 pentagonal bipyramid, corners with two equivalent Lu(1)F7 pentagonal bipyramids,  a cornercorner with one Lu(8)F6 pentagonal pyramid, and edges with two equivalent Lu(1)F7 pentagonal bipyramids. In the sixth Lu site, Lu(6) is bonded to one F(26), one F(27), one F(3), two equivalent F(11), and two equivalent F(7) atoms to form LuF7 pentagonal bipyramids that share  a cornercorner with one Lu(5)F7 pentagonal bipyramid, corners with two equivalent Lu(2)F7 pentagonal bipyramids,  a cornercorner with one Lu(7)F6 pentagonal pyramid, and edges with two equivalent Lu(2)F7 pentagonal bipyramids. In the seventh Lu site, Lu(7) is bonded to one F(27), one F(4), two equivalent F(12), and two equivalent F(8) atoms to form a mixture of distorted corner and edge-sharing LuF6 pentagonal pyramids. In the eighth Lu site, Lu(8) is bonded to one F(1), one F(25), two equivalent F(5), and two equivalent F(9) atoms to form a mixture of corner and edge-sharing LuF6 pentagonal pyramids. There are twenty-seven inequivalent F sites. In the first F site, F(1) is bonded in a trigonal planar geometry to one Lu(8) and two equivalent Lu(4) atoms. In the second F site, F(2) is bonded in a trigonal planar geometry to one Lu(5) and two equivalent Lu(1) atoms. In the third F site, F(3) is bonded in a trigonal planar geometry to one Lu(6) and two equivalent Lu(2) atoms. In the fourth F site, F(4) is bonded in a trigonal non-coplanar geometry to one Lu(7) and two equivalent Lu(3) atoms. In the fifth F site, F(5) is bonded in a distorted bent 150 degrees geometry to one Lu(4) and one Lu(8) atom. In the sixth F site, F(6) is bonded in a bent 150 degrees geometry to one Lu(1) and one Lu(5) atom. In the seventh F site, F(7) is bonded in a bent 150 degrees geometry to one Lu(2) and one Lu(6) atom. In the eighth F site, F(8) is bonded in a bent 150 degrees geometry to one Lu(3) and one Lu(7) atom. In the ninth F site, F(9) is bonded in a distorted trigonal non-coplanar geometry to one Cs(1), one Lu(4), and one Lu(8) atom. In the tenth F site, F(10) is bonded to one Cs(1), one Cs(2), one Lu(1), and one Lu(5) atom to form a mixture of distorted corner and edge-sharing FCs2Lu2 tetrahedra. In the eleventh F site, F(11) is bonded to one Cs(2), one Cs(3), one Lu(2), and one Lu(6) atom to form a mixture of distorted corner and edge-sharing FCs2Lu2 tetrahedra. In the twelfth F site, F(12) is bonded in a trigonal planar geometry to one Cs(3), one Lu(3), and one Lu(7) atom. In the thirteenth F site, F(13) is bonded in a bent 150 degrees geometry to two equivalent Lu(1) atoms. In the fourteenth F site, F(14) is bonded in a bent 150 degrees geometry to two equivalent Lu(2) atoms. In the fifteenth F site, F(15) is bonded in a bent 150 degrees geometry to two equivalent Lu(3) atoms. In the sixteenth F site, F(16) is bonded in a bent 150 degrees geometry to two equivalent Lu(4) atoms. In the seventeenth F site, F(17) is bonded in a trigonal non-coplanar geometry to one Cs(1) and two equivalent Lu(4) atoms. In the eighteenth F site, F(18) is bonded to one Cs(1), one Cs(2), and two equivalent Lu(1) atoms to form a mixture of distorted corner and edge-sharing FCs2Lu2 tetrahedra. In the nineteenth F site, F(19) is bonded to one Cs(2), one Cs(3), and two equivalent Lu(2) atoms to form a mixture of distorted corner and edge-sharing FCs2Lu2 tetrahedra. In the twentieth F site, F(20) is bonded in a distorted trigonal planar geometry to one Cs(3) and two equivalent Lu(3) atoms. In the twenty-first F site, F(21) is bonded in a linear geometry to one Lu(1) and one Lu(4) atom. In the twenty-second F site, F(22) is bonded in a linear geometry to one Lu(1) and one Lu(2) atom. In the twenty-third F site, F(23) is bonded in a linear geometry to one Lu(2) and one Lu(3) atom. In the twenty-fourth F site, F(24) is bonded in a linear geometry to one Lu(3) and one Lu(4) atom. In the twenty-fifth F site, F(25) is bonded in a linear geometry to one Lu(5) and one Lu(8) atom. In the twenty-sixth F site, F(26) is bonded in a linear geometry to one Lu(5) and one Lu(6) atom. In the twenty-seventh F site, F(27) is bonded in a linear geometry to one Lu(6) and one Lu(7) atom.
CsLu4F13 crystallizes in the monoclinic Cm space group. There are three inequivalent Cs sites. In the first Cs site, Cs(1) is bonded in a 6-coordinate geometry to one F(17), one F(18), two equivalent F(10), and two equivalent F(9) atoms. The Cs(1)-F(17) bond length is 3.03 Å. The Cs(1)-F(18) bond length is 3.14 Å. Both Cs(1)-F(10) bond lengths are 3.24 Å. Both Cs(1)-F(9) bond lengths are 3.20 Å. In the second Cs site, Cs(2) is bonded in a 6-coordinate geometry to one F(18), one F(19), two equivalent F(10), and two equivalent F(11) atoms. The Cs(2)-F(18) bond length is 3.17 Å. The Cs(2)-F(19) bond length is 3.04 Å. Both Cs(2)-F(10) bond lengths are 3.21 Å. Both Cs(2)-F(11) bond lengths are 3.12 Å. In the third Cs site, Cs(3) is bonded in a 6-coordinate geometry to one F(19), one F(20), two equivalent F(11), and two equivalent F(12) atoms. The Cs(3)-F(19) bond length is 3.25 Å. The Cs(3)-F(20) bond length is 3.02 Å. Both Cs(3)-F(11) bond lengths are 3.32 Å. Both Cs(3)-F(12) bond lengths are 3.00 Å. There are eight inequivalent Lu sites. In the first Lu site, Lu(1) is bonded to one F(10), one F(13), one F(18), one F(2), one F(21), one F(22), and one F(6) atom to form a mixture of corner and edge-sharing LuF7 pentagonal bipyramids. The Lu(1)-F(10) bond length is 2.26 Å. The Lu(1)-F(13) bond length is 2.15 Å. The Lu(1)-F(18) bond length is 2.27 Å. The Lu(1)-F(2) bond length is 2.21 Å. The Lu(1)-F(21) bond length is 2.15 Å. The Lu(1)-F(22) bond length is 2.17 Å. The Lu(1)-F(6) bond length is 2.15 Å. In the second Lu site, Lu(2) is bonded to one F(11), one F(14), one F(19), one F(22), one F(23), one F(3), and one F(7) atom to form a mixture of corner and edge-sharing LuF7 pentagonal bipyramids. The Lu(2)-F(11) bond length is 2.26 Å. The Lu(2)-F(14) bond length is 2.15 Å. The Lu(2)-F(19) bond length is 2.26 Å. The Lu(2)-F(22) bond length is 2.16 Å. The Lu(2)-F(23) bond length is 2.16 Å. The Lu(2)-F(3) bond length is 2.22 Å. The Lu(2)-F(7) bond length is 2.15 Å. In the third Lu site, Lu(3) is bonded to one F(12), one F(15), one F(20), one F(23), one F(24), one F(4), and one F(8) atom to form distorted LuF7 pentagonal bipyramids that share  a cornercorner with one Lu(2)F7 pentagonal bipyramid,  a cornercorner with one Lu(3)F7 pentagonal bipyramid,  a cornercorner with one Lu(4)F7 pentagonal bipyramid,  a cornercorner with one Lu(7)F6 pentagonal pyramid,  an edgeedge with one Lu(3)F7 pentagonal bipyramid, and  an edgeedge with one Lu(7)F6 pentagonal pyramid. The Lu(3)-F(12) bond length is 2.22 Å. The Lu(3)-F(15) bond length is 2.15 Å. The Lu(3)-F(20) bond length is 2.20 Å. The Lu(3)-F(23) bond length is 2.18 Å. The Lu(3)-F(24) bond length is 2.14 Å. The Lu(3)-F(4) bond length is 2.36 Å. The Lu(3)-F(8) bond length is 2.19 Å. In the fourth Lu site, Lu(4) is bonded to one F(1), one F(16), one F(17), one F(21), one F(24), one F(5), and one F(9) atom to form LuF7 pentagonal bipyramids that share  a cornercorner with one Lu(1)F7 pentagonal bipyramid,  a cornercorner with one Lu(3)F7 pentagonal bipyramid,  a cornercorner with one Lu(4)F7 pentagonal bipyramid,  a cornercorner with one Lu(8)F6 pentagonal pyramid,  an edgeedge with one Lu(4)F7 pentagonal bipyramid, and  an edgeedge with one Lu(8)F6 pentagonal pyramid. The Lu(4)-F(1) bond length is 2.23 Å. The Lu(4)-F(16) bond length is 2.16 Å. The Lu(4)-F(17) bond length is 2.24 Å. The Lu(4)-F(21) bond length is 2.18 Å. The Lu(4)-F(24) bond length is 2.13 Å. The Lu(4)-F(5) bond length is 2.16 Å. The Lu(4)-F(9) bond length is 2.28 Å. In the fifth Lu site, Lu(5) is bonded to one F(2), one F(25), one F(26), two equivalent F(10), and two equivalent F(6) atoms to form LuF7 pentagonal bipyramids that share  a cornercorner with one Lu(6)F7 pentagonal bipyramid, corners with two equivalent Lu(1)F7 pentagonal bipyramids,  a cornercorner with one Lu(8)F6 pentagonal pyramid, and edges with two equivalent Lu(1)F7 pentagonal bipyramids. The Lu(5)-F(2) bond length is 2.20 Å. The Lu(5)-F(25) bond length is 2.14 Å. The Lu(5)-F(26) bond length is 2.11 Å. Both Lu(5)-F(10) bond lengths are 2.25 Å. Both Lu(5)-F(6) bond lengths are 2.14 Å. In the sixth Lu site, Lu(6) is bonded to one F(26), one F(27), one F(3), two equivalent F(11), and two equivalent F(7) atoms to form LuF7 pentagonal bipyramids that share  a cornercorner with one Lu(5)F7 pentagonal bipyramid, corners with two equivalent Lu(2)F7 pentagonal bipyramids,  a cornercorner with one Lu(7)F6 pentagonal pyramid, and edges with two equivalent Lu(2)F7 pentagonal bipyramids. The Lu(6)-F(26) bond length is 2.11 Å. The Lu(6)-F(27) bond length is 2.14 Å. The Lu(6)-F(3) bond length is 2.21 Å. Both Lu(6)-F(11) bond lengths are 2.25 Å. Both Lu(6)-F(7) bond lengths are 2.15 Å. In the seventh Lu site, Lu(7) is bonded to one F(27), one F(4), two equivalent F(12), and two equivalent F(8) atoms to form a mixture of distorted corner and edge-sharing LuF6 pentagonal pyramids. The Lu(7)-F(27) bond length is 2.04 Å. The Lu(7)-F(4) bond length is 2.21 Å. Both Lu(7)-F(12) bond lengths are 2.19 Å. Both Lu(7)-F(8) bond lengths are 2.14 Å. In the eighth Lu site, Lu(8) is bonded to one F(1), one F(25), two equivalent F(5), and two equivalent F(9) atoms to form a mixture of corner and edge-sharing LuF6 pentagonal pyramids. The Lu(8)-F(1) bond length is 2.19 Å. The Lu(8)-F(25) bond length is 2.04 Å. Both Lu(8)-F(5) bond lengths are 2.13 Å. Both Lu(8)-F(9) bond lengths are 2.18 Å. There are twenty-seven inequivalent F sites. In the first F site, F(1) is bonded in a trigonal planar geometry to one Lu(8) and two equivalent Lu(4) atoms. In the second F site, F(2) is bonded in a trigonal planar geometry to one Lu(5) and two equivalent Lu(1) atoms. In the third F site, F(3) is bonded in a trigonal planar geometry to one Lu(6) and two equivalent Lu(2) atoms. In the fourth F site, F(4) is bonded in a trigonal non-coplanar geometry to one Lu(7) and two equivalent Lu(3) atoms. In the fifth F site, F(5) is bonded in a distorted bent 150 degrees geometry to one Lu(4) and one Lu(8) atom. In the sixth F site, F(6) is bonded in a bent 150 degrees geometry to one Lu(1) and one Lu(5) atom. In the seventh F site, F(7) is bonded in a bent 150 degrees geometry to one Lu(2) and one Lu(6) atom. In the eighth F site, F(8) is bonded in a bent 150 degrees geometry to one Lu(3) and one Lu(7) atom. In the ninth F site, F(9) is bonded in a distorted trigonal non-coplanar geometry to one Cs(1), one Lu(4), and one Lu(8) atom. In the tenth F site, F(10) is bonded to one Cs(1), one Cs(2), one Lu(1), and one Lu(5) atom to form a mixture of distorted corner and edge-sharing FCs2Lu2 tetrahedra. In the eleventh F site, F(11) is bonded to one Cs(2), one Cs(3), one Lu(2), and one Lu(6) atom to form a mixture of distorted corner and edge-sharing FCs2Lu2 tetrahedra. In the twelfth F site, F(12) is bonded in a trigonal planar geometry to one Cs(3), one Lu(3), and one Lu(7) atom. In the thirteenth F site, F(13) is bonded in a bent 150 degrees geometry to two equivalent Lu(1) atoms. In the fourteenth F site, F(14) is bonded in a bent 150 degrees geometry to two equivalent Lu(2) atoms. In the fifteenth F site, F(15) is bonded in a bent 150 degrees geometry to two equivalent Lu(3) atoms. In the sixteenth F site, F(16) is bonded in a bent 150 degrees geometry to two equivalent Lu(4) atoms. In the seventeenth F site, F(17) is bonded in a trigonal non-coplanar geometry to one Cs(1) and two equivalent Lu(4) atoms. In the eighteenth F site, F(18) is bonded to one Cs(1), one Cs(2), and two equivalent Lu(1) atoms to form a mixture of distorted corner and edge-sharing FCs2Lu2 tetrahedra. In the nineteenth F site, F(19) is bonded to one Cs(2), one Cs(3), and two equivalent Lu(2) atoms to form a mixture of distorted corner and edge-sharing FCs2Lu2 tetrahedra. In the twentieth F site, F(20) is bonded in a distorted trigonal planar geometry to one Cs(3) and two equivalent Lu(3) atoms. In the twenty-first F site, F(21) is bonded in a linear geometry to one Lu(1) and one Lu(4) atom. In the twenty-second F site, F(22) is bonded in a linear geometry to one Lu(1) and one Lu(2) atom. In the twenty-third F site, F(23) is bonded in a linear geometry to one Lu(2) and one Lu(3) atom. In the twenty-fourth F site, F(24) is bonded in a linear geometry to one Lu(3) and one Lu(4) atom. In the twenty-fifth F site, F(25) is bonded in a linear geometry to one Lu(5) and one Lu(8) atom. In the twenty-sixth F site, F(26) is bonded in a linear geometry to one Lu(5) and one Lu(6) atom. In the twenty-seventh F site, F(27) is bonded in a linear geometry to one Lu(6) and one Lu(7) atom.