MgSb3 crystallizes in the orthorhombic Imm2 space group. Mg(1) is bonded in a 10-coordinate geometry to four equivalent Sb(1) and six equivalent Sb(2) atoms. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 2-coordinate geometry to four equivalent Mg(1) atoms. In the second Sb site, Sb(2) is bonded in a 2-coordinate geometry to three equivalent Mg(1) atoms.
MgSb3 crystallizes in the orthorhombic Imm2 space group. Mg(1) is bonded in a 10-coordinate geometry to four equivalent Sb(1) and six equivalent Sb(2) atoms. There are two shorter (3.14 Å) and two longer (3.43 Å) Mg(1)-Sb(1) bond lengths. There are four shorter (3.14 Å) and two longer (3.43 Å) Mg(1)-Sb(2) bond lengths. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 2-coordinate geometry to four equivalent Mg(1) atoms. In the second Sb site, Sb(2) is bonded in a 2-coordinate geometry to three equivalent Mg(1) atoms.