Ba(MgGe)2 crystallizes in the tetragonal I4/mmm space group. Ba(1) is bonded in a 16-coordinate geometry to eight equivalent Mg(1) and eight equivalent Ge(1) atoms. Mg(1) is bonded to four equivalent Ba(1) and four equivalent Ge(1) atoms to form a mixture of corner, face, and edge-sharing MgBa4Ge4 tetrahedra. Ge(1) is bonded in a 9-coordinate geometry to four equivalent Ba(1), four equivalent Mg(1), and one Ge(1) atom.
Ba(MgGe)2 crystallizes in the tetragonal I4/mmm space group. Ba(1) is bonded in a 16-coordinate geometry to eight equivalent Mg(1) and eight equivalent Ge(1) atoms. All Ba(1)-Mg(1) bond lengths are 3.68 Å. All Ba(1)-Ge(1) bond lengths are 3.56 Å. Mg(1) is bonded to four equivalent Ba(1) and four equivalent Ge(1) atoms to form a mixture of corner, face, and edge-sharing MgBa4Ge4 tetrahedra. All Mg(1)-Ge(1) bond lengths are 2.79 Å. Ge(1) is bonded in a 9-coordinate geometry to four equivalent Ba(1), four equivalent Mg(1), and one Ge(1) atom. The Ge(1)-Ge(1) bond length is 2.65 Å.