Mn2HgO4 is Spinel structured and crystallizes in the orthorhombic Fddd space group. Mn(1) is bonded to six equivalent O(1) atoms to form distorted MnO6 octahedra that share corners with six equivalent Hg(1)O4 tetrahedra and edges with six equivalent Mn(1)O6 octahedra. Hg(1) is bonded to four equivalent O(1) atoms to form HgO4 tetrahedra that share corners with twelve equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-66°. O(1) is bonded to three equivalent Mn(1) and one Hg(1) atom to form a mixture of distorted edge and corner-sharing OMn3Hg tetrahedra.
Mn2HgO4 is Spinel structured and crystallizes in the orthorhombic Fddd space group. Mn(1) is bonded to six equivalent O(1) atoms to form distorted MnO6 octahedra that share corners with six equivalent Hg(1)O4 tetrahedra and edges with six equivalent Mn(1)O6 octahedra. There are four shorter (1.94 Å) and two longer (2.30 Å) Mn(1)-O(1) bond lengths. Hg(1) is bonded to four equivalent O(1) atoms to form HgO4 tetrahedra that share corners with twelve equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-66°. All Hg(1)-O(1) bond lengths are 2.22 Å. O(1) is bonded to three equivalent Mn(1) and one Hg(1) atom to form a mixture of distorted edge and corner-sharing OMn3Hg tetrahedra.