SrMg crystallizes in the orthorhombic Amm2 space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 4-coordinate geometry to two equivalent Mg(1) and two equivalent Mg(2) atoms. In the second Sr site, Sr(2) is bonded in a 8-coordinate geometry to two equivalent Mg(1), two equivalent Mg(3), and four equivalent Mg(2) atoms. In the third Sr site, Sr(3) is bonded in a 6-coordinate geometry to two equivalent Mg(1), two equivalent Mg(2), and two equivalent Mg(3) atoms. There are three inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a distorted hexagonal planar geometry to two equivalent Sr(1), two equivalent Sr(2), and two equivalent Sr(3) atoms. In the second Mg site, Mg(2) is bonded in a 8-coordinate geometry to two equivalent Sr(1), two equivalent Sr(3), and four equivalent Sr(2) atoms. In the third Mg site, Mg(3) is bonded to two equivalent Sr(2) and two equivalent Sr(3) atoms to form distorted corner-sharing MgSr4 tetrahedra.
SrMg crystallizes in the orthorhombic Amm2 space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 4-coordinate geometry to two equivalent Mg(1) and two equivalent Mg(2) atoms. Both Sr(1)-Mg(1) bond lengths are 3.60 Å. Both Sr(1)-Mg(2) bond lengths are 3.79 Å. In the second Sr site, Sr(2) is bonded in a 8-coordinate geometry to two equivalent Mg(1), two equivalent Mg(3), and four equivalent Mg(2) atoms. Both Sr(2)-Mg(1) bond lengths are 3.56 Å. Both Sr(2)-Mg(3) bond lengths are 3.55 Å. All Sr(2)-Mg(2) bond lengths are 3.82 Å. In the third Sr site, Sr(3) is bonded in a 6-coordinate geometry to two equivalent Mg(1), two equivalent Mg(2), and two equivalent Mg(3) atoms. Both Sr(3)-Mg(1) bond lengths are 3.58 Å. Both Sr(3)-Mg(2) bond lengths are 3.90 Å. Both Sr(3)-Mg(3) bond lengths are 3.62 Å. There are three inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a distorted hexagonal planar geometry to two equivalent Sr(1), two equivalent Sr(2), and two equivalent Sr(3) atoms. In the second Mg site, Mg(2) is bonded in a 8-coordinate geometry to two equivalent Sr(1), two equivalent Sr(3), and four equivalent Sr(2) atoms. In the third Mg site, Mg(3) is bonded to two equivalent Sr(2) and two equivalent Sr(3) atoms to form distorted corner-sharing MgSr4 tetrahedra.