MgMo2HO6 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 5-coordinate geometry to one O(3), two equivalent O(5), and two equivalent O(6) atoms. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(1), one O(5), two equivalent O(2), and two equivalent O(3) atoms to form a mixture of distorted corner and edge-sharing MoO6 octahedra. The corner-sharing octahedral tilt angles range from 21-25°. In the second Mo site, Mo(2) is bonded to one O(2), one O(6), two equivalent O(1), and two equivalent O(4) atoms to form a mixture of distorted corner and edge-sharing MoO6 octahedra. The corner-sharing octahedral tilt angles range from 6-23°. H(1) is bonded in a single-bond geometry to one O(5) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a T-shaped geometry to one Mo(1) and two equivalent Mo(2) atoms. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Mo(2) and two equivalent Mo(1) atoms. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one Mg(1) and two equivalent Mo(1) atoms. In the fourth O site, O(4) is bonded in a linear geometry to two equivalent Mo(2) atoms. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to two equivalent Mg(1), one Mo(1), and one H(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to two equivalent Mg(1) and one Mo(2) atom.
MgMo2HO6 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 5-coordinate geometry to one O(3), two equivalent O(5), and two equivalent O(6) atoms. The Mg(1)-O(3) bond length is 2.07 Å. There is one shorter (2.03 Å) and one longer (2.05 Å) Mg(1)-O(5) bond length. There is one shorter (2.06 Å) and one longer (2.21 Å) Mg(1)-O(6) bond length. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(1), one O(5), two equivalent O(2), and two equivalent O(3) atoms to form a mixture of distorted corner and edge-sharing MoO6 octahedra. The corner-sharing octahedral tilt angles range from 21-25°. The Mo(1)-O(1) bond length is 2.18 Å. The Mo(1)-O(5) bond length is 2.20 Å. There is one shorter (1.98 Å) and one longer (2.09 Å) Mo(1)-O(2) bond length. There is one shorter (2.02 Å) and one longer (2.06 Å) Mo(1)-O(3) bond length. In the second Mo site, Mo(2) is bonded to one O(2), one O(6), two equivalent O(1), and two equivalent O(4) atoms to form a mixture of distorted corner and edge-sharing MoO6 octahedra. The corner-sharing octahedral tilt angles range from 6-23°. The Mo(2)-O(2) bond length is 2.14 Å. The Mo(2)-O(6) bond length is 1.94 Å. There is one shorter (2.04 Å) and one longer (2.05 Å) Mo(2)-O(1) bond length. There is one shorter (1.76 Å) and one longer (2.23 Å) Mo(2)-O(4) bond length. H(1) is bonded in a single-bond geometry to one O(5) atom. The H(1)-O(5) bond length is 0.98 Å. There are six inequivalent O sites. In the first O site, O(1) is bonded in a T-shaped geometry to one Mo(1) and two equivalent Mo(2) atoms. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Mo(2) and two equivalent Mo(1) atoms. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one Mg(1) and two equivalent Mo(1) atoms. In the fourth O site, O(4) is bonded in a linear geometry to two equivalent Mo(2) atoms. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to two equivalent Mg(1), one Mo(1), and one H(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to two equivalent Mg(1) and one Mo(2) atom.