Mn2InO5 crystallizes in the orthorhombic Pbam space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form MnO6 octahedra that share corners with four equivalent Mn(2)O5 square pyramids and edges with two equivalent Mn(1)O6 octahedra. In the second Mn site, Mn(2) is bonded to one O(4), two equivalent O(1), and two equivalent O(2) atoms to form distorted MnO5 square pyramids that share corners with four equivalent Mn(1)O6 octahedra and  an edgeedge with one Mn(2)O5 square pyramid. The corner-sharing octahedral tilt angles range from 50-61°. In(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(3), and four equivalent O(2) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Mn(2) and two equivalent In(1) atoms. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(2), and two equivalent In(1) atoms. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Mn(1) and two equivalent In(1) atoms. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Mn(2) and two equivalent Mn(1) atoms.
Mn2InO5 crystallizes in the orthorhombic Pbam space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form MnO6 octahedra that share corners with four equivalent Mn(2)O5 square pyramids and edges with two equivalent Mn(1)O6 octahedra. Both Mn(1)-O(2) bond lengths are 1.91 Å. Both Mn(1)-O(3) bond lengths are 1.94 Å. Both Mn(1)-O(4) bond lengths are 1.89 Å. In the second Mn site, Mn(2) is bonded to one O(4), two equivalent O(1), and two equivalent O(2) atoms to form distorted MnO5 square pyramids that share corners with four equivalent Mn(1)O6 octahedra and  an edgeedge with one Mn(2)O5 square pyramid. The corner-sharing octahedral tilt angles range from 50-61°. The Mn(2)-O(4) bond length is 2.03 Å. Both Mn(2)-O(1) bond lengths are 2.00 Å. Both Mn(2)-O(2) bond lengths are 1.93 Å. In(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(3), and four equivalent O(2) atoms. Both In(1)-O(1) bond lengths are 2.29 Å. There is one shorter (2.24 Å) and one longer (2.44 Å) In(1)-O(3) bond length. There are two shorter (2.23 Å) and two longer (2.69 Å) In(1)-O(2) bond lengths. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Mn(2) and two equivalent In(1) atoms. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(2), and two equivalent In(1) atoms. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Mn(1) and two equivalent In(1) atoms. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Mn(2) and two equivalent Mn(1) atoms.