MgGd2Mo2(O4Cl)2 crystallizes in the monoclinic C2 space group. Mg(1) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(4), and two equivalent Cl(1) atoms. Gd(1) is bonded in a 8-coordinate geometry to one O(1), one O(4), two equivalent O(2), two equivalent O(3), and two equivalent Cl(1) atoms. Mo(1) is bonded in a distorted tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a T-shaped geometry to one Mg(1), one Gd(1), and one Mo(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to two equivalent Gd(1) and one Mo(1) atom. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Gd(1) and one Mo(1) atom. In the fourth O site, O(4) is bonded in a T-shaped geometry to one Mg(1), one Gd(1), and one Mo(1) atom. Cl(1) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1) and two equivalent Gd(1) atoms.
MgGd2Mo2(O4Cl)2 crystallizes in the monoclinic C2 space group. Mg(1) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(4), and two equivalent Cl(1) atoms. Both Mg(1)-O(1) bond lengths are 2.12 Å. Both Mg(1)-O(4) bond lengths are 2.21 Å. Both Mg(1)-Cl(1) bond lengths are 2.57 Å. Gd(1) is bonded in a 8-coordinate geometry to one O(1), one O(4), two equivalent O(2), two equivalent O(3), and two equivalent Cl(1) atoms. The Gd(1)-O(1) bond length is 2.38 Å. The Gd(1)-O(4) bond length is 2.32 Å. There is one shorter (2.34 Å) and one longer (2.57 Å) Gd(1)-O(2) bond length. There is one shorter (2.31 Å) and one longer (2.43 Å) Gd(1)-O(3) bond length. There is one shorter (2.96 Å) and one longer (3.06 Å) Gd(1)-Cl(1) bond length. Mo(1) is bonded in a distorted tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. The Mo(1)-O(1) bond length is 1.87 Å. The Mo(1)-O(2) bond length is 1.85 Å. The Mo(1)-O(3) bond length is 1.88 Å. The Mo(1)-O(4) bond length is 1.87 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a T-shaped geometry to one Mg(1), one Gd(1), and one Mo(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to two equivalent Gd(1) and one Mo(1) atom. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Gd(1) and one Mo(1) atom. In the fourth O site, O(4) is bonded in a T-shaped geometry to one Mg(1), one Gd(1), and one Mo(1) atom. Cl(1) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1) and two equivalent Gd(1) atoms.