MgRe2(SbO6)2 crystallizes in the monoclinic Pm space group. Mg(1) is bonded in a 8-coordinate geometry to one O(6), one O(7), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. Re(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(6), and one O(8) atom to form ReO6 octahedra that share corners with two equivalent Re(1)O6 octahedra and corners with four equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 28-42°. Sb(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(7) atom to form SbO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra and corners with four equivalent Re(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 29-42°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Re(1) and one Sb(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Mg(1), one Re(1), and one Sb(1) atom. In the third O site, O(3) is bonded in a T-shaped geometry to one Mg(1), one Re(1), and one Sb(1) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Mg(1), one Re(1), and one Sb(1) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to two equivalent Sb(1) atoms. In the sixth O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1) and two equivalent Re(1) atoms. In the seventh O site, O(7) is bonded in a T-shaped geometry to one Mg(1) and two equivalent Sb(1) atoms. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to two equivalent Re(1) atoms.
MgRe2(SbO6)2 crystallizes in the monoclinic Pm space group. Mg(1) is bonded in a 8-coordinate geometry to one O(6), one O(7), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. The Mg(1)-O(6) bond length is 2.09 Å. The Mg(1)-O(7) bond length is 2.15 Å. Both Mg(1)-O(2) bond lengths are 2.56 Å. Both Mg(1)-O(3) bond lengths are 2.30 Å. Both Mg(1)-O(4) bond lengths are 2.11 Å. Re(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(6), and one O(8) atom to form ReO6 octahedra that share corners with two equivalent Re(1)O6 octahedra and corners with four equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 28-42°. The Re(1)-O(1) bond length is 1.87 Å. The Re(1)-O(2) bond length is 1.87 Å. The Re(1)-O(3) bond length is 1.92 Å. The Re(1)-O(4) bond length is 2.01 Å. The Re(1)-O(6) bond length is 2.01 Å. The Re(1)-O(8) bond length is 1.88 Å. Sb(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(7) atom to form SbO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra and corners with four equivalent Re(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 29-42°. The Sb(1)-O(1) bond length is 2.01 Å. The Sb(1)-O(2) bond length is 2.05 Å. The Sb(1)-O(3) bond length is 2.03 Å. The Sb(1)-O(4) bond length is 1.99 Å. The Sb(1)-O(5) bond length is 1.95 Å. The Sb(1)-O(7) bond length is 2.01 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Re(1) and one Sb(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Mg(1), one Re(1), and one Sb(1) atom. In the third O site, O(3) is bonded in a T-shaped geometry to one Mg(1), one Re(1), and one Sb(1) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Mg(1), one Re(1), and one Sb(1) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to two equivalent Sb(1) atoms. In the sixth O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1) and two equivalent Re(1) atoms. In the seventh O site, O(7) is bonded in a T-shaped geometry to one Mg(1) and two equivalent Sb(1) atoms. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to two equivalent Re(1) atoms.