Mn2CoSn crystallizes in the cubic F-43m space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to four equivalent Mn(2) and four equivalent Sn(1) atoms to form distorted edge-sharing MnMn4Sn4 tetrahedra. In the second Mn site, Mn(2) is bonded in a 14-coordinate geometry to four equivalent Mn(1), four equivalent Co(1), and six equivalent Sn(1) atoms. Co(1) is bonded in a distorted body-centered cubic geometry to four equivalent Mn(2) and four equivalent Sn(1) atoms. Sn(1) is bonded in a distorted body-centered cubic geometry to four equivalent Mn(1), six equivalent Mn(2), and four equivalent Co(1) atoms.
Mn2CoSn crystallizes in the cubic F-43m space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to four equivalent Mn(2) and four equivalent Sn(1) atoms to form distorted edge-sharing MnMn4Sn4 tetrahedra. All Mn(1)-Mn(2) bond lengths are 2.66 Å. All Mn(1)-Sn(1) bond lengths are 2.66 Å. In the second Mn site, Mn(2) is bonded in a 14-coordinate geometry to four equivalent Mn(1), four equivalent Co(1), and six equivalent Sn(1) atoms. All Mn(2)-Co(1) bond lengths are 2.66 Å. All Mn(2)-Sn(1) bond lengths are 3.07 Å. Co(1) is bonded in a distorted body-centered cubic geometry to four equivalent Mn(2) and four equivalent Sn(1) atoms. All Co(1)-Sn(1) bond lengths are 2.66 Å. Sn(1) is bonded in a distorted body-centered cubic geometry to four equivalent Mn(1), six equivalent Mn(2), and four equivalent Co(1) atoms.