Gd2(SO4)3 crystallizes in the triclinic P1 space group. There are two inequivalent Gd sites. In the first Gd site, Gd(1) is bonded in a distorted hexagonal bipyramidal geometry to one O(1), one O(11), one O(12), one O(2), one O(3), one O(5), one O(6), and one O(9) atom. In the second Gd site, Gd(2) is bonded in a 8-coordinate geometry to one O(10), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. There are three inequivalent S sites. In the first S site, S(1) is bonded in a trigonal non-coplanar geometry to one O(1), one O(2), and one O(3) atom. In the second S site, S(2) is bonded in a trigonal non-coplanar geometry to one O(4), one O(5), and one O(6) atom. In the third S site, S(3) is bonded in a trigonal non-coplanar geometry to one O(7), one O(8), and one O(9) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Gd(1) and one S(1) atom. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to one Gd(1), one Gd(2), and one S(1) atom. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Gd(1), one Gd(2), and one S(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Gd(2) and one S(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Gd(1), one Gd(2), and one S(2) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Gd(1), one Gd(2), and one S(2) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one Gd(2) and one S(3) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Gd(2) and one S(3) atom. In the ninth O site, O(9) is bonded in a distorted bent 150 degrees geometry to one Gd(1) and one S(3) atom. In the tenth O site, O(10) is bonded in a single-bond geometry to one Gd(2) atom. In the eleventh O site, O(11) is bonded in a distorted L-shaped geometry to one Gd(1) and one O(12) atom. In the twelfth O site, O(12) is bonded in a distorted L-shaped geometry to one Gd(1) and one O(11) atom.
Gd2(SO4)3 crystallizes in the triclinic P1 space group. There are two inequivalent Gd sites. In the first Gd site, Gd(1) is bonded in a distorted hexagonal bipyramidal geometry to one O(1), one O(11), one O(12), one O(2), one O(3), one O(5), one O(6), and one O(9) atom. The Gd(1)-O(1) bond length is 2.31 Å. The Gd(1)-O(11) bond length is 2.81 Å. The Gd(1)-O(12) bond length is 2.80 Å. The Gd(1)-O(2) bond length is 2.42 Å. The Gd(1)-O(3) bond length is 2.42 Å. The Gd(1)-O(5) bond length is 2.33 Å. The Gd(1)-O(6) bond length is 2.35 Å. The Gd(1)-O(9) bond length is 2.26 Å. In the second Gd site, Gd(2) is bonded in a 8-coordinate geometry to one O(10), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. The Gd(2)-O(10) bond length is 2.18 Å. The Gd(2)-O(2) bond length is 2.42 Å. The Gd(2)-O(3) bond length is 2.47 Å. The Gd(2)-O(4) bond length is 2.32 Å. The Gd(2)-O(5) bond length is 2.52 Å. The Gd(2)-O(6) bond length is 2.52 Å. The Gd(2)-O(7) bond length is 2.58 Å. The Gd(2)-O(8) bond length is 2.50 Å. There are three inequivalent S sites. In the first S site, S(1) is bonded in a trigonal non-coplanar geometry to one O(1), one O(2), and one O(3) atom. The S(1)-O(1) bond length is 1.52 Å. The S(1)-O(2) bond length is 1.58 Å. The S(1)-O(3) bond length is 1.57 Å. In the second S site, S(2) is bonded in a trigonal non-coplanar geometry to one O(4), one O(5), and one O(6) atom. The S(2)-O(4) bond length is 1.51 Å. The S(2)-O(5) bond length is 1.58 Å. The S(2)-O(6) bond length is 1.57 Å. In the third S site, S(3) is bonded in a trigonal non-coplanar geometry to one O(7), one O(8), and one O(9) atom. The S(3)-O(7) bond length is 1.48 Å. The S(3)-O(8) bond length is 1.49 Å. The S(3)-O(9) bond length is 1.51 Å. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Gd(1) and one S(1) atom. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to one Gd(1), one Gd(2), and one S(1) atom. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Gd(1), one Gd(2), and one S(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Gd(2) and one S(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Gd(1), one Gd(2), and one S(2) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Gd(1), one Gd(2), and one S(2) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one Gd(2) and one S(3) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Gd(2) and one S(3) atom. In the ninth O site, O(9) is bonded in a distorted bent 150 degrees geometry to one Gd(1) and one S(3) atom. In the tenth O site, O(10) is bonded in a single-bond geometry to one Gd(2) atom. In the eleventh O site, O(11) is bonded in a distorted L-shaped geometry to one Gd(1) and one O(12) atom. The O(11)-O(12) bond length is 1.25 Å. In the twelfth O site, O(12) is bonded in a distorted L-shaped geometry to one Gd(1) and one O(11) atom.