MgCuGe is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. Mg(1) is bonded to four equivalent Mg(1), four equivalent Cu(1), and four equivalent Ge(1) atoms to form a mixture of distorted face and corner-sharing MgMg4Cu4Ge4 cuboctahedra. Cu(1) is bonded in a 9-coordinate geometry to four equivalent Mg(1) and five equivalent Ge(1) atoms. Ge(1) is bonded in a 9-coordinate geometry to four equivalent Mg(1) and five equivalent Cu(1) atoms.
MgCuGe is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. Mg(1) is bonded to four equivalent Mg(1), four equivalent Cu(1), and four equivalent Ge(1) atoms to form a mixture of distorted face and corner-sharing MgMg4Cu4Ge4 cuboctahedra. All Mg(1)-Mg(1) bond lengths are 2.83 Å. All Mg(1)-Cu(1) bond lengths are 2.76 Å. All Mg(1)-Ge(1) bond lengths are 2.87 Å. Cu(1) is bonded in a 9-coordinate geometry to four equivalent Mg(1) and five equivalent Ge(1) atoms. There is one shorter (2.43 Å) and four longer (2.84 Å) Cu(1)-Ge(1) bond lengths. Ge(1) is bonded in a 9-coordinate geometry to four equivalent Mg(1) and five equivalent Cu(1) atoms.