The material structure described by Mn3Ge crystallizes in the trigonal R-3m space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to three equivalent Mn(2), six equivalent Mn(1), and three equivalent Ge(1) atoms to form distorted MnMn9Ge3 cuboctahedra that share corners with six equivalent Ge(1)Mn6 cuboctahedra, corners with twelve equivalent Mn(1)Mn9Ge3 cuboctahedra, edges with six equivalent Mn(2)Mn12 cuboctahedra, edges with six equivalent Ge(1)Mn6 cuboctahedra, edges with twelve equivalent Mn(1)Mn9Ge3 cuboctahedra, faces with six equivalent Mn(2)Mn12 cuboctahedra, and faces with six equivalent Mn(1)Mn9Ge3 cuboctahedra. In the second Mn site, Mn(2) is bonded to six equivalent Mn(1) and six equivalent Mn(2) atoms to form MnMn12 cuboctahedra that share corners with six equivalent Mn(2)Mn12 cuboctahedra, corners with six equivalent Ge(1)Mn6 cuboctahedra, edges with six equivalent Mn(2)Mn12 cuboctahedra, edges with six equivalent Ge(1)Mn6 cuboctahedra, edges with twelve equivalent Mn(1)Mn9Ge3 cuboctahedra, faces with six equivalent Mn(2)Mn12 cuboctahedra, and faces with twelve equivalent Mn(1)Mn9Ge3 cuboctahedra. Ge(1) is bonded to six equivalent Mn(1) atoms to form distorted GeMn6 cuboctahedra that share corners with six equivalent Mn(2)Mn12 cuboctahedra, corners with twelve equivalent Mn(1)Mn9Ge3 cuboctahedra, edges with six equivalent Mn(2)Mn12 cuboctahedra, edges with six equivalent Ge(1)Mn6 cuboctahedra, and edges with twelve equivalent Mn(1)Mn9Ge3 cuboctahedra. is represented by the CIF card [CIF]
data_Mn3Ge
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.208
_cell_length_b   8.208
_cell_length_c   8.208
_cell_angle_alpha   18.857
_cell_angle_beta   18.857
_cell_angle_gamma   18.857
_symmetry_Int_Tables_number   1
_cell_volume   50.480
_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
  Mn  Mn0  1  0.247  0.247  0.247  1.0
  Mn  Mn1  1  0.500  0.500  0.500  1.0
  Mn  Mn2  1  0.753  0.753  0.753  1.0
  Ge  Ge3  1  0.000  0.000  0.000  1.0
[/CIF]
.
The material structure described by Mn3Ge crystallizes in the trigonal R-3m space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to three equivalent Mn(2), six equivalent Mn(1), and three equivalent Ge(1) atoms to form distorted MnMn9Ge3 cuboctahedra that share corners with six equivalent Ge(1)Mn6 cuboctahedra, corners with twelve equivalent Mn(1)Mn9Ge3 cuboctahedra, edges with six equivalent Mn(2)Mn12 cuboctahedra, edges with six equivalent Ge(1)Mn6 cuboctahedra, edges with twelve equivalent Mn(1)Mn9Ge3 cuboctahedra, faces with six equivalent Mn(2)Mn12 cuboctahedra, and faces with six equivalent Mn(1)Mn9Ge3 cuboctahedra. In the second Mn site, Mn(2) is bonded to six equivalent Mn(1) and six equivalent Mn(2) atoms to form MnMn12 cuboctahedra that share corners with six equivalent Mn(2)Mn12 cuboctahedra, corners with six equivalent Ge(1)Mn6 cuboctahedra, edges with six equivalent Mn(2)Mn12 cuboctahedra, edges with six equivalent Ge(1)Mn6 cuboctahedra, edges with twelve equivalent Mn(1)Mn9Ge3 cuboctahedra, faces with six equivalent Mn(2)Mn12 cuboctahedra, and faces with twelve equivalent Mn(1)Mn9Ge3 cuboctahedra. Ge(1) is bonded to six equivalent Mn(1) atoms to form distorted GeMn6 cuboctahedra that share corners with six equivalent Mn(2)Mn12 cuboctahedra, corners with twelve equivalent Mn(1)Mn9Ge3 cuboctahedra, edges with six equivalent Mn(2)Mn12 cuboctahedra, edges with six equivalent Ge(1)Mn6 cuboctahedra, and edges with twelve equivalent Mn(1)Mn9Ge3 cuboctahedra. is represented by the CIF card [CIF]
data_Mn3Ge
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.208
_cell_length_b   8.208
_cell_length_c   8.208
_cell_angle_alpha   18.857
_cell_angle_beta   18.857
_cell_angle_gamma   18.857
_symmetry_Int_Tables_number   1
_cell_volume   50.480
_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
  Mn  Mn0  1  0.247  0.247  0.247  1.0
  Mn  Mn1  1  0.500  0.500  0.500  1.0
  Mn  Mn2  1  0.753  0.753  0.753  1.0
  Ge  Ge3  1  0.000  0.000  0.000  1.0
[/CIF]
.