MgMn2(AgO3)2 is Orthorhombic Perovskite-derived structured and crystallizes in the trigonal R-3 space group. Mg(1) is bonded to six equivalent O(1) atoms to form distorted MgO6 octahedra that share corners with six equivalent Mn(1)O6 octahedra and faces with two equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles are 32°. Mn(1) is bonded to six equivalent O(1) atoms to form distorted MnO6 octahedra that share corners with three equivalent Mg(1)O6 octahedra, edges with three equivalent Mn(1)O6 octahedra, and  a faceface with one Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles are 32°. Ag(1) is bonded in a distorted trigonal non-coplanar geometry to six equivalent O(1) atoms. O(1) is bonded in a 5-coordinate geometry to one Mg(1), two equivalent Mn(1), and two equivalent Ag(1) atoms.
MgMn2(AgO3)2 is Orthorhombic Perovskite-derived structured and crystallizes in the trigonal R-3 space group. Mg(1) is bonded to six equivalent O(1) atoms to form distorted MgO6 octahedra that share corners with six equivalent Mn(1)O6 octahedra and faces with two equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles are 32°. All Mg(1)-O(1) bond lengths are 2.13 Å. Mn(1) is bonded to six equivalent O(1) atoms to form distorted MnO6 octahedra that share corners with three equivalent Mg(1)O6 octahedra, edges with three equivalent Mn(1)O6 octahedra, and  a faceface with one Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles are 32°. There are three shorter (1.98 Å) and three longer (1.99 Å) Mn(1)-O(1) bond lengths. Ag(1) is bonded in a distorted trigonal non-coplanar geometry to six equivalent O(1) atoms. There are three shorter (2.27 Å) and three longer (2.72 Å) Ag(1)-O(1) bond lengths. O(1) is bonded in a 5-coordinate geometry to one Mg(1), two equivalent Mn(1), and two equivalent Ag(1) atoms.