Mn2Ga5 crystallizes in the tetragonal P4/mbm space group. Mn(1) is bonded to two equivalent Mn(1), two equivalent Ga(1), and eight equivalent Ga(2) atoms to form a mixture of distorted corner, edge, and face-sharing MnMn2Ga10 cuboctahedra. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 10-coordinate geometry to four equivalent Mn(1), two equivalent Ga(1), and four equivalent Ga(2) atoms. In the second Ga site, Ga(2) is bonded in a 10-coordinate geometry to four equivalent Mn(1), one Ga(1), and five equivalent Ga(2) atoms.
Mn2Ga5 crystallizes in the tetragonal P4/mbm space group. Mn(1) is bonded to two equivalent Mn(1), two equivalent Ga(1), and eight equivalent Ga(2) atoms to form a mixture of distorted corner, edge, and face-sharing MnMn2Ga10 cuboctahedra. Both Mn(1)-Mn(1) bond lengths are 2.70 Å. Both Mn(1)-Ga(1) bond lengths are 2.61 Å. There are four shorter (2.65 Å) and four longer (2.74 Å) Mn(1)-Ga(2) bond lengths. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 10-coordinate geometry to four equivalent Mn(1), two equivalent Ga(1), and four equivalent Ga(2) atoms. Both Ga(1)-Ga(1) bond lengths are 2.70 Å. All Ga(1)-Ga(2) bond lengths are 2.66 Å. In the second Ga site, Ga(2) is bonded in a 10-coordinate geometry to four equivalent Mn(1), one Ga(1), and five equivalent Ga(2) atoms. There are a spread of Ga(2)-Ga(2) bond distances ranging from 2.70-2.86 Å.