Gd2Cl3 crystallizes in the triclinic P1 space group. There are four inequivalent Gd sites. In the first Gd site, Gd(1) is bonded in a distorted pentagonal planar geometry to one Cl(2), one Cl(4), one Cl(5), and two equivalent Cl(3) atoms. In the second Gd site, Gd(2) is bonded in a distorted pentagonal planar geometry to one Cl(1), one Cl(3), one Cl(6), and two equivalent Cl(4) atoms. In the third Gd site, Gd(3) is bonded in a 5-coordinate geometry to one Cl(6), two equivalent Cl(1), and two equivalent Cl(5) atoms. In the fourth Gd site, Gd(4) is bonded in a 5-coordinate geometry to one Cl(5), two equivalent Cl(2), and two equivalent Cl(6) atoms. There are six inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a distorted T-shaped geometry to one Gd(2) and two equivalent Gd(3) atoms. In the second Cl site, Cl(2) is bonded in a distorted T-shaped geometry to one Gd(1) and two equivalent Gd(4) atoms. In the third Cl site, Cl(3) is bonded in a trigonal non-coplanar geometry to one Gd(2) and two equivalent Gd(1) atoms. In the fourth Cl site, Cl(4) is bonded in a distorted trigonal non-coplanar geometry to one Gd(1) and two equivalent Gd(2) atoms. In the fifth Cl site, Cl(5) is bonded in a rectangular see-saw-like geometry to one Gd(1), one Gd(4), and two equivalent Gd(3) atoms. In the sixth Cl site, Cl(6) is bonded in a rectangular see-saw-like geometry to one Gd(2), one Gd(3), and two equivalent Gd(4) atoms.
Gd2Cl3 crystallizes in the triclinic P1 space group. There are four inequivalent Gd sites. In the first Gd site, Gd(1) is bonded in a distorted pentagonal planar geometry to one Cl(2), one Cl(4), one Cl(5), and two equivalent Cl(3) atoms. The Gd(1)-Cl(2) bond length is 2.70 Å. The Gd(1)-Cl(4) bond length is 2.84 Å. The Gd(1)-Cl(5) bond length is 2.74 Å. There is one shorter (2.83 Å) and one longer (2.87 Å) Gd(1)-Cl(3) bond length. In the second Gd site, Gd(2) is bonded in a distorted pentagonal planar geometry to one Cl(1), one Cl(3), one Cl(6), and two equivalent Cl(4) atoms. The Gd(2)-Cl(1) bond length is 2.70 Å. The Gd(2)-Cl(3) bond length is 2.83 Å. The Gd(2)-Cl(6) bond length is 2.80 Å. There is one shorter (2.84 Å) and one longer (2.91 Å) Gd(2)-Cl(4) bond length. In the third Gd site, Gd(3) is bonded in a 5-coordinate geometry to one Cl(6), two equivalent Cl(1), and two equivalent Cl(5) atoms. The Gd(3)-Cl(6) bond length is 3.09 Å. Both Gd(3)-Cl(1) bond lengths are 2.78 Å. There is one shorter (2.80 Å) and one longer (2.83 Å) Gd(3)-Cl(5) bond length. In the fourth Gd site, Gd(4) is bonded in a 5-coordinate geometry to one Cl(5), two equivalent Cl(2), and two equivalent Cl(6) atoms. The Gd(4)-Cl(5) bond length is 3.13 Å. There is one shorter (2.76 Å) and one longer (2.79 Å) Gd(4)-Cl(2) bond length. There is one shorter (2.83 Å) and one longer (2.84 Å) Gd(4)-Cl(6) bond length. There are six inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a distorted T-shaped geometry to one Gd(2) and two equivalent Gd(3) atoms. In the second Cl site, Cl(2) is bonded in a distorted T-shaped geometry to one Gd(1) and two equivalent Gd(4) atoms. In the third Cl site, Cl(3) is bonded in a trigonal non-coplanar geometry to one Gd(2) and two equivalent Gd(1) atoms. In the fourth Cl site, Cl(4) is bonded in a distorted trigonal non-coplanar geometry to one Gd(1) and two equivalent Gd(2) atoms. In the fifth Cl site, Cl(5) is bonded in a rectangular see-saw-like geometry to one Gd(1), one Gd(4), and two equivalent Gd(3) atoms. In the sixth Cl site, Cl(6) is bonded in a rectangular see-saw-like geometry to one Gd(2), one Gd(3), and two equivalent Gd(4) atoms.