MgFe2O4 crystallizes in the monoclinic C2/m space group. Mg(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form MgO6 octahedra that share corners with six equivalent Fe(1)O5 trigonal bipyramids, edges with two equivalent Mg(1)O6 octahedra, and edges with four equivalent Fe(1)O5 trigonal bipyramids. Fe(1) is bonded to two equivalent O(2) and three equivalent O(1) atoms to form FeO5 trigonal bipyramids that share corners with three equivalent Mg(1)O6 octahedra, corners with two equivalent Fe(1)O5 trigonal bipyramids, edges with two equivalent Mg(1)O6 octahedra, and edges with three equivalent Fe(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 26-52°. There are two inequivalent O sites. In the first O site, O(2) is bonded to two equivalent Mg(1) and two equivalent Fe(1) atoms to form a mixture of corner and edge-sharing OMg2Fe2 trigonal pyramids. In the second O site, O(1) is bonded in a see-saw-like geometry to one Mg(1) and three equivalent Fe(1) atoms.
MgFe2O4 crystallizes in the monoclinic C2/m space group. Mg(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form MgO6 octahedra that share corners with six equivalent Fe(1)O5 trigonal bipyramids, edges with two equivalent Mg(1)O6 octahedra, and edges with four equivalent Fe(1)O5 trigonal bipyramids. Both Mg(1)-O(1) bond lengths are 2.11 Å. All Mg(1)-O(2) bond lengths are 2.16 Å. Fe(1) is bonded to two equivalent O(2) and three equivalent O(1) atoms to form FeO5 trigonal bipyramids that share corners with three equivalent Mg(1)O6 octahedra, corners with two equivalent Fe(1)O5 trigonal bipyramids, edges with two equivalent Mg(1)O6 octahedra, and edges with three equivalent Fe(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 26-52°. There is one shorter (1.89 Å) and one longer (2.06 Å) Fe(1)-O(2) bond length. There are two shorter (1.98 Å) and one longer (2.04 Å) Fe(1)-O(1) bond length. There are two inequivalent O sites. In the first O site, O(2) is bonded to two equivalent Mg(1) and two equivalent Fe(1) atoms to form a mixture of corner and edge-sharing OMg2Fe2 trigonal pyramids. In the second O site, O(1) is bonded in a see-saw-like geometry to one Mg(1) and three equivalent Fe(1) atoms.