The compound described by Cu5Ge2 crystallizes in the trigonal R-3m space group. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 7-coordinate geometry to three equivalent Cu(2), three equivalent Cu(3), and four equivalent Ge(1) atoms. In the second Cu site, Cu(2) is bonded in a 11-coordinate geometry to one Cu(3), three equivalent Cu(1), three equivalent Cu(2), and four equivalent Ge(1) atoms. In the third Cu site, Cu(3) is bonded in a 14-coordinate geometry to two equivalent Cu(2), six equivalent Cu(1), and six equivalent Ge(1) atoms. Ge(1) is bonded in a distorted body-centered cubic geometry to three equivalent Cu(3), four equivalent Cu(1), and four equivalent Cu(2) atoms. is represented by the CIF file [CIF]
data_Cu5Ge2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.091
_cell_length_b   7.091
_cell_length_c   7.091
_cell_angle_alpha   33.841
_cell_angle_beta   33.841
_cell_angle_gamma   33.841
_symmetry_Int_Tables_number   1
_cell_volume   98.533
_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
  Cu  Cu0  1  0.377  0.377  0.377  1.0
  Cu  Cu1  1  0.873  0.873  0.873  1.0
  Cu  Cu2  1  0.623  0.623  0.623  1.0
  Cu  Cu3  1  0.127  0.127  0.127  1.0
  Cu  Cu4  1  0.000  0.000  0.000  1.0
  Ge  Ge5  1  0.752  0.752  0.752  1.0
  Ge  Ge6  1  0.248  0.248  0.248  1.0
[/CIF]
.
The compound described by Cu5Ge2 crystallizes in the trigonal R-3m space group. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 7-coordinate geometry to three equivalent Cu(2), three equivalent Cu(3), and four equivalent Ge(1) atoms. In the second Cu site, Cu(2) is bonded in a 11-coordinate geometry to one Cu(3), three equivalent Cu(1), three equivalent Cu(2), and four equivalent Ge(1) atoms. In the third Cu site, Cu(3) is bonded in a 14-coordinate geometry to two equivalent Cu(2), six equivalent Cu(1), and six equivalent Ge(1) atoms. Ge(1) is bonded in a distorted body-centered cubic geometry to three equivalent Cu(3), four equivalent Cu(1), and four equivalent Cu(2) atoms. is represented by the CIF file [CIF]
data_Cu5Ge2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.091
_cell_length_b   7.091
_cell_length_c   7.091
_cell_angle_alpha   33.841
_cell_angle_beta   33.841
_cell_angle_gamma   33.841
_symmetry_Int_Tables_number   1
_cell_volume   98.533
_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
  Cu  Cu0  1  0.377  0.377  0.377  1.0
  Cu  Cu1  1  0.873  0.873  0.873  1.0
  Cu  Cu2  1  0.623  0.623  0.623  1.0
  Cu  Cu3  1  0.127  0.127  0.127  1.0
  Cu  Cu4  1  0.000  0.000  0.000  1.0
  Ge  Ge5  1  0.752  0.752  0.752  1.0
  Ge  Ge6  1  0.248  0.248  0.248  1.0
[/CIF]
.