ScMn2O5 is beta indium sulfide-derived structured and crystallizes in the orthorhombic Cmcm space group. Sc(1) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. Mn(1) is bonded to one O(3), two equivalent O(1), and three equivalent O(2) atoms to form a mixture of corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 27-45°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted T-shaped geometry to one Sc(1) and two equivalent Mn(1) atoms. In the second O site, O(2) is bonded to one Sc(1) and three equivalent Mn(1) atoms to form OScMn3 trigonal pyramids that share  a cornercorner with one O(3)Sc2Mn2 trigonal pyramid, corners with three equivalent O(2)ScMn3 trigonal pyramids, edges with two equivalent O(3)Sc2Mn2 trigonal pyramids, and edges with two equivalent O(2)ScMn3 trigonal pyramids. In the third O site, O(3) is bonded to two equivalent Sc(1) and two equivalent Mn(1) atoms to form distorted OSc2Mn2 trigonal pyramids that share corners with two equivalent O(3)Sc2Mn2 trigonal pyramids, corners with two equivalent O(2)ScMn3 trigonal pyramids, and edges with four equivalent O(2)ScMn3 trigonal pyramids.
ScMn2O5 is beta indium sulfide-derived structured and crystallizes in the orthorhombic Cmcm space group. Sc(1) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. Both Sc(1)-O(1) bond lengths are 2.02 Å. Both Sc(1)-O(2) bond lengths are 2.21 Å. Both Sc(1)-O(3) bond lengths are 2.13 Å. Mn(1) is bonded to one O(3), two equivalent O(1), and three equivalent O(2) atoms to form a mixture of corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 27-45°. The Mn(1)-O(3) bond length is 2.08 Å. Both Mn(1)-O(1) bond lengths are 1.91 Å. There is one shorter (2.02 Å) and two longer (2.05 Å) Mn(1)-O(2) bond lengths. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted T-shaped geometry to one Sc(1) and two equivalent Mn(1) atoms. In the second O site, O(2) is bonded to one Sc(1) and three equivalent Mn(1) atoms to form OScMn3 trigonal pyramids that share  a cornercorner with one O(3)Sc2Mn2 trigonal pyramid, corners with three equivalent O(2)ScMn3 trigonal pyramids, edges with two equivalent O(3)Sc2Mn2 trigonal pyramids, and edges with two equivalent O(2)ScMn3 trigonal pyramids. In the third O site, O(3) is bonded to two equivalent Sc(1) and two equivalent Mn(1) atoms to form distorted OSc2Mn2 trigonal pyramids that share corners with two equivalent O(3)Sc2Mn2 trigonal pyramids, corners with two equivalent O(2)ScMn3 trigonal pyramids, and edges with four equivalent O(2)ScMn3 trigonal pyramids.