CsYb2Cl7 crystallizes in the orthorhombic Pnma space group. Cs(1) is bonded in a 8-coordinate geometry to two equivalent Cl(1), two equivalent Cl(2), two equivalent Cl(3), and two equivalent Cl(4) atoms. There are two inequivalent Yb sites. In the first Yb site, Yb(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 edge and face-sharing YbCl7 hexagonal pyramids. In the second Yb site, Yb(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 edge and face-sharing YbCl7 hexagonal pyramids. There are four inequivalent Cl sites. In the first Cl site, Cl(4) is bonded to two equivalent Cs(1), one Yb(1), and one Yb(2) atom to form corner-sharing ClCs2Yb2 tetrahedra. In the second Cl site, Cl(1) is bonded in a 3-coordinate geometry to one Cs(1), one Yb(1), and one Yb(2) atom. In the third Cl site, Cl(2) is bonded in a distorted water-like geometry to one Cs(1), one Yb(1), and one Yb(2) atom. In the fourth Cl site, Cl(3) is bonded in a 3-coordinate geometry to one Cs(1), one Yb(1), and one Yb(2) atom.
CsYb2Cl7 crystallizes in the orthorhombic Pnma space group. Cs(1) is bonded in a 8-coordinate geometry to two equivalent Cl(1), two equivalent Cl(2), two equivalent Cl(3), and two equivalent Cl(4) atoms. Both Cs(1)-Cl(1) bond lengths are 3.57 Å. Both Cs(1)-Cl(2) bond lengths are 4.02 Å. Both Cs(1)-Cl(3) bond lengths are 3.73 Å. Both Cs(1)-Cl(4) bond lengths are 3.45 Å. There are two inequivalent Yb sites. In the first Yb site, Yb(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 edge and face-sharing YbCl7 hexagonal pyramids. The Yb(1)-Cl(4) bond length is 2.76 Å. Both Yb(1)-Cl(1) bond lengths are 2.77 Å. Both Yb(1)-Cl(2) bond lengths are 2.76 Å. Both Yb(1)-Cl(3) bond lengths are 2.79 Å. In the second Yb site, Yb(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 edge and face-sharing YbCl7 hexagonal pyramids. The Yb(2)-Cl(4) bond length is 2.71 Å. Both Yb(2)-Cl(1) bond lengths are 2.79 Å. Both Yb(2)-Cl(2) bond lengths are 2.75 Å. Both Yb(2)-Cl(3) bond lengths are 2.79 Å. There are four inequivalent Cl sites. In the first Cl site, Cl(4) is bonded to two equivalent Cs(1), one Yb(1), and one Yb(2) atom to form corner-sharing ClCs2Yb2 tetrahedra. In the second Cl site, Cl(1) is bonded in a 3-coordinate geometry to one Cs(1), one Yb(1), and one Yb(2) atom. In the third Cl site, Cl(2) is bonded in a distorted water-like geometry to one Cs(1), one Yb(1), and one Yb(2) atom. In the fourth Cl site, Cl(3) is bonded in a 3-coordinate geometry to one Cs(1), one Yb(1), and one Yb(2) atom.