MgMn2(AgO3)2 crystallizes in the trigonal R-3 space group. Mg(1) is bonded to six equivalent O(1) atoms to form MgO6 octahedra that share edges with six equivalent Mn(1)O6 octahedra. Mn(1) is bonded to six equivalent O(1) atoms to form MnO6 octahedra that share edges with three equivalent Mg(1)O6 octahedra and edges with three equivalent Mn(1)O6 octahedra. Ag(1) is bonded in a 6-coordinate 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 crystallizes in the trigonal R-3 space group. Mg(1) is bonded to six equivalent O(1) atoms to form MgO6 octahedra that share edges with six equivalent Mn(1)O6 octahedra. All Mg(1)-O(1) bond lengths are 2.08 Å. Mn(1) is bonded to six equivalent O(1) atoms to form MnO6 octahedra that share edges with three equivalent Mg(1)O6 octahedra and edges with three equivalent Mn(1)O6 octahedra. There are three shorter (1.95 Å) and three longer (1.97 Å) Mn(1)-O(1) bond lengths. Ag(1) is bonded in a 6-coordinate geometry to six equivalent O(1) atoms. There are three shorter (2.52 Å) and three longer (2.60 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.