MgReO4 is Hydrophilite-derived structured and crystallizes in the orthorhombic Cmmm space group. Mg(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form MgO6 octahedra that share corners with eight equivalent Re(1)O6 octahedra and edges with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-51°. Re(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form ReO6 octahedra that share corners with eight equivalent Mg(1)O6 octahedra and edges with two equivalent Re(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-51°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Mg(1) and one Re(1) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Mg(1) and two equivalent Re(1) atoms.
MgReO4 is Hydrophilite-derived structured and crystallizes in the orthorhombic Cmmm space group. Mg(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form MgO6 octahedra that share corners with eight equivalent Re(1)O6 octahedra and edges with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-51°. Both Mg(1)-O(2) bond lengths are 2.10 Å. All Mg(1)-O(1) bond lengths are 2.10 Å. Re(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form ReO6 octahedra that share corners with eight equivalent Mg(1)O6 octahedra and edges with two equivalent Re(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-51°. Both Re(1)-O(1) bond lengths are 1.85 Å. All Re(1)-O(2) bond lengths are 2.00 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Mg(1) and one Re(1) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Mg(1) and two equivalent Re(1) atoms.