Mn3Sb2 crystallizes in the hexagonal P-6m2 space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 11-coordinate geometry to two equivalent Mn(1), three equivalent Mn(2), three equivalent Sb(1), and three equivalent Sb(2) atoms. In the second Mn site, Mn(2) is bonded to six equivalent Mn(1), two equivalent Sb(1), and three equivalent Sb(2) atoms to form a mixture of distorted face and corner-sharing MnMn6Sb5 trigonal bipyramids. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 8-coordinate geometry to two equivalent Mn(2) and six equivalent Mn(1) atoms. In the second Sb site, Sb(2) is bonded in a 9-coordinate geometry to three equivalent Mn(2) and six equivalent Mn(1) atoms.
Mn3Sb2 crystallizes in the hexagonal P-6m2 space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 11-coordinate geometry to two equivalent Mn(1), three equivalent Mn(2), three equivalent Sb(1), and three equivalent Sb(2) atoms. There is one shorter (2.65 Å) and one longer (2.71 Å) Mn(1)-Mn(1) bond length. All Mn(1)-Mn(2) bond lengths are 2.83 Å. All Mn(1)-Sb(1) bond lengths are 2.84 Å. All Mn(1)-Sb(2) bond lengths are 2.83 Å. In the second Mn site, Mn(2) is bonded to six equivalent Mn(1), two equivalent Sb(1), and three equivalent Sb(2) atoms to form a mixture of distorted face and corner-sharing MnMn6Sb5 trigonal bipyramids. Both Mn(2)-Sb(1) bond lengths are 2.68 Å. All Mn(2)-Sb(2) bond lengths are 2.49 Å. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 8-coordinate geometry to two equivalent Mn(2) and six equivalent Mn(1) atoms. In the second Sb site, Sb(2) is bonded in a 9-coordinate geometry to three equivalent Mn(2) and six equivalent Mn(1) atoms.