CsLu2Cl7 crystallizes in the orthorhombic Pnma space group. Cs(1) is bonded in a 10-coordinate geometry to two equivalent Cl(1), two equivalent Cl(2), two equivalent Cl(4), and four equivalent Cl(3) atoms. There are two inequivalent Lu sites. In the first Lu site, Lu(1) is bonded to one Cl(4), two equivalent Cl(1), two equivalent Cl(2), and two equivalent Cl(3) atoms to form a mixture of distorted face and edge-sharing LuCl7 pentagonal bipyramids. In the second Lu site, Lu(2) is bonded to one Cl(4), two equivalent Cl(1), two equivalent Cl(2), and two equivalent Cl(3) atoms to form a mixture of distorted face and edge-sharing LuCl7 pentagonal bipyramids. There are four inequivalent Cl sites. In the first Cl site, Cl(4) is bonded to two equivalent Cs(1), one Lu(1), and one Lu(2) atom to form a mixture of distorted edge and corner-sharing ClCs2Lu2 trigonal pyramids. In the second Cl site, Cl(1) is bonded in a distorted L-shaped geometry to one Cs(1), one Lu(1), and one Lu(2) atom. In the third Cl site, Cl(2) is bonded in a distorted trigonal non-coplanar geometry to one Cs(1), one Lu(1), and one Lu(2) atom. In the fourth Cl site, Cl(3) is bonded to two equivalent Cs(1), one Lu(1), and one Lu(2) atom to form a mixture of distorted edge and corner-sharing ClCs2Lu2 tetrahedra.
CsLu2Cl7 crystallizes in the orthorhombic Pnma space group. Cs(1) is bonded in a 10-coordinate geometry to two equivalent Cl(1), two equivalent Cl(2), two equivalent Cl(4), and four equivalent Cl(3) atoms. Both Cs(1)-Cl(1) bond lengths are 3.67 Å. Both Cs(1)-Cl(2) bond lengths are 3.55 Å. Both Cs(1)-Cl(4) bond lengths are 3.59 Å. There are two shorter (3.61 Å) and two longer (3.66 Å) Cs(1)-Cl(3) bond lengths. There are two inequivalent Lu sites. In the first Lu site, Lu(1) is bonded to one Cl(4), two equivalent Cl(1), two equivalent Cl(2), and two equivalent Cl(3) atoms to form a mixture of distorted face and edge-sharing LuCl7 pentagonal bipyramids. The Lu(1)-Cl(4) bond length is 2.72 Å. Both Lu(1)-Cl(1) bond lengths are 2.63 Å. Both Lu(1)-Cl(2) bond lengths are 2.66 Å. Both Lu(1)-Cl(3) bond lengths are 2.64 Å. In the second Lu site, Lu(2) is bonded to one Cl(4), two equivalent Cl(1), two equivalent Cl(2), and two equivalent Cl(3) atoms to form a mixture of distorted face and edge-sharing LuCl7 pentagonal bipyramids. The Lu(2)-Cl(4) bond length is 2.69 Å. Both Lu(2)-Cl(1) bond lengths are 2.64 Å. Both Lu(2)-Cl(2) bond lengths are 2.62 Å. Both Lu(2)-Cl(3) bond lengths are 2.68 Å. There are four inequivalent Cl sites. In the first Cl site, Cl(4) is bonded to two equivalent Cs(1), one Lu(1), and one Lu(2) atom to form a mixture of distorted edge and corner-sharing ClCs2Lu2 trigonal pyramids. In the second Cl site, Cl(1) is bonded in a distorted L-shaped geometry to one Cs(1), one Lu(1), and one Lu(2) atom. In the third Cl site, Cl(2) is bonded in a distorted trigonal non-coplanar geometry to one Cs(1), one Lu(1), and one Lu(2) atom. In the fourth Cl site, Cl(3) is bonded to two equivalent Cs(1), one Lu(1), and one Lu(2) atom to form a mixture of distorted edge and corner-sharing ClCs2Lu2 tetrahedra.