The material described by Mg5Ge crystallizes in the cubic F-43m space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 12-coordinate geometry to twelve equivalent Mg(2) atoms. In the second Mg site, Mg(2) is bonded to three equivalent Mg(1), six equivalent Mg(2), and three equivalent Ge(1) atoms to form a mixture of distorted corner, face, and edge-sharing MgMg9Ge3 cuboctahedra. Ge(1) is bonded in a 12-coordinate geometry to twelve equivalent Mg(2) atoms. is represented by the CIF card [CIF]
data_Mg5Ge
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.794
_cell_length_b   5.794
_cell_length_c   5.794
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   137.516
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Mg  Mg0  1  0.250  0.250  0.250  1.0
  Mg  Mg1  1  0.625  0.625  0.625  1.0
  Mg  Mg2  1  0.125  0.625  0.625  1.0
  Mg  Mg3  1  0.625  0.125  0.625  1.0
  Mg  Mg4  1  0.625  0.625  0.125  1.0
  Ge  Ge5  1  0.000  0.000  0.000  1.0
[/CIF]
.
The material described by Mg5Ge crystallizes in the cubic F-43m space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 12-coordinate geometry to twelve equivalent Mg(2) atoms. In the second Mg site, Mg(2) is bonded to three equivalent Mg(1), six equivalent Mg(2), and three equivalent Ge(1) atoms to form a mixture of distorted corner, face, and edge-sharing MgMg9Ge3 cuboctahedra. Ge(1) is bonded in a 12-coordinate geometry to twelve equivalent Mg(2) atoms. is represented by the CIF card [CIF]
data_Mg5Ge
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.794
_cell_length_b   5.794
_cell_length_c   5.794
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   137.516
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Mg  Mg0  1  0.250  0.250  0.250  1.0
  Mg  Mg1  1  0.625  0.625  0.625  1.0
  Mg  Mg2  1  0.125  0.625  0.625  1.0
  Mg  Mg3  1  0.625  0.125  0.625  1.0
  Mg  Mg4  1  0.625  0.625  0.125  1.0
  Ge  Ge5  1  0.000  0.000  0.000  1.0
[/CIF]
.