MgGe2 is Magnesium tetraboride-like structured and crystallizes in the monoclinic C2/m space group. Mg(1) is bonded in a 8-coordinate geometry to three equivalent Ge(1) and five equivalent Ge(2) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 6-coordinate geometry to three equivalent Mg(1), one Ge(1), and two equivalent Ge(2) atoms. In the second Ge site, Ge(2) is bonded in a 7-coordinate geometry to five equivalent Mg(1) and two equivalent Ge(1) atoms.
MgGe2 is Magnesium tetraboride-like structured and crystallizes in the monoclinic C2/m space group. Mg(1) is bonded in a 8-coordinate geometry to three equivalent Ge(1) and five equivalent Ge(2) atoms. There is one shorter (2.89 Å) and two longer (2.94 Å) Mg(1)-Ge(1) bond lengths. There are a spread of Mg(1)-Ge(2) bond distances ranging from 2.89-3.16 Å. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 6-coordinate geometry to three equivalent Mg(1), one Ge(1), and two equivalent Ge(2) atoms. The Ge(1)-Ge(1) bond length is 2.55 Å. Both Ge(1)-Ge(2) bond lengths are 2.70 Å. In the second Ge site, Ge(2) is bonded in a 7-coordinate geometry to five equivalent Mg(1) and two equivalent Ge(1) atoms.