Fe2MoO4 is Spinel-like structured and crystallizes in the orthorhombic Imma space group. Mo(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form MoO6 octahedra that share corners with six equivalent Fe(1)O4 tetrahedra, edges with two equivalent Mo(1)O6 octahedra, and edges with four equivalent Fe(2)O6 octahedra. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form FeO4 tetrahedra that share corners with six equivalent Mo(1)O6 octahedra and corners with six equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-58°. In the second Fe site, Fe(2) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form FeO6 octahedra that share corners with six equivalent Fe(1)O4 tetrahedra, edges with two equivalent Fe(2)O6 octahedra, and edges with four equivalent Mo(1)O6 octahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to two equivalent Mo(1), one Fe(1), and one Fe(2) atom. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to one Mo(1), one Fe(1), and two equivalent Fe(2) atoms.
Fe2MoO4 is Spinel-like structured and crystallizes in the orthorhombic Imma space group. Mo(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form MoO6 octahedra that share corners with six equivalent Fe(1)O4 tetrahedra, edges with two equivalent Mo(1)O6 octahedra, and edges with four equivalent Fe(2)O6 octahedra. Both Mo(1)-O(2) bond lengths are 2.17 Å. All Mo(1)-O(1) bond lengths are 2.17 Å. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form FeO4 tetrahedra that share corners with six equivalent Mo(1)O6 octahedra and corners with six equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-58°. Both Fe(1)-O(1) bond lengths are 1.95 Å. Both Fe(1)-O(2) bond lengths are 1.92 Å. In the second Fe site, Fe(2) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form FeO6 octahedra that share corners with six equivalent Fe(1)O4 tetrahedra, edges with two equivalent Fe(2)O6 octahedra, and edges with four equivalent Mo(1)O6 octahedra. Both Fe(2)-O(1) bond lengths are 2.17 Å. All Fe(2)-O(2) bond lengths are 2.17 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to two equivalent Mo(1), one Fe(1), and one Fe(2) atom. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to one Mo(1), one Fe(1), and two equivalent Fe(2) atoms.