The crystal structure described by Cu6GeSb is Sodium arsenide-derived structured and crystallizes in the hexagonal P-6m2 space group. There are four inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a distorted trigonal planar geometry to six equivalent Cu(4) and three equivalent Ge(1) atoms. In the second Cu site, Cu(2) is bonded in a distorted trigonal planar geometry to six equivalent Cu(3) and three equivalent Sb(1) atoms. In the third Cu site, Cu(3) is bonded in a 11-coordinate geometry to one Cu(3), three equivalent Cu(2), three equivalent Cu(4), one Ge(1), and three equivalent Sb(1) atoms. In the fourth Cu site, Cu(4) is bonded in a 11-coordinate geometry to one Cu(4), three equivalent Cu(1), three equivalent Cu(3), three equivalent Ge(1), and one Sb(1) atom. Ge(1) is bonded in a 11-coordinate geometry to two equivalent Cu(3), three equivalent Cu(1), and six equivalent Cu(4) atoms. Sb(1) is bonded in a 11-coordinate geometry to two equivalent Cu(4), three equivalent Cu(2), and six equivalent Cu(3) atoms. is represented by the CIF card [CIF]
data_Cu6GeSb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.252
_cell_length_b   4.252
_cell_length_c   7.573
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   60.001
_symmetry_Int_Tables_number   1
_cell_volume   118.564
_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  0.000  1.000  0.750  1.0
  Cu  Cu1  1  0.000  1.000  0.250  1.0
  Cu  Cu2  1  0.333  0.333  0.073  1.0
  Cu  Cu3  1  0.667  0.667  0.908  1.0
  Cu  Cu4  1  0.667  0.667  0.592  1.0
  Cu  Cu5  1  0.333  0.333  0.427  1.0
  Ge  Ge6  1  0.333  0.333  0.750  1.0
  Sb  Sb7  1  0.667  0.667  0.250  1.0
[/CIF]
.
The crystal structure described by Cu6GeSb is Sodium arsenide-derived structured and crystallizes in the hexagonal P-6m2 space group. There are four inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a distorted trigonal planar geometry to six equivalent Cu(4) and three equivalent Ge(1) atoms. In the second Cu site, Cu(2) is bonded in a distorted trigonal planar geometry to six equivalent Cu(3) and three equivalent Sb(1) atoms. In the third Cu site, Cu(3) is bonded in a 11-coordinate geometry to one Cu(3), three equivalent Cu(2), three equivalent Cu(4), one Ge(1), and three equivalent Sb(1) atoms. In the fourth Cu site, Cu(4) is bonded in a 11-coordinate geometry to one Cu(4), three equivalent Cu(1), three equivalent Cu(3), three equivalent Ge(1), and one Sb(1) atom. Ge(1) is bonded in a 11-coordinate geometry to two equivalent Cu(3), three equivalent Cu(1), and six equivalent Cu(4) atoms. Sb(1) is bonded in a 11-coordinate geometry to two equivalent Cu(4), three equivalent Cu(2), and six equivalent Cu(3) atoms. is represented by the CIF card [CIF]
data_Cu6GeSb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.252
_cell_length_b   4.252
_cell_length_c   7.573
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   60.001
_symmetry_Int_Tables_number   1
_cell_volume   118.564
_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  0.000  1.000  0.750  1.0
  Cu  Cu1  1  0.000  1.000  0.250  1.0
  Cu  Cu2  1  0.333  0.333  0.073  1.0
  Cu  Cu3  1  0.667  0.667  0.908  1.0
  Cu  Cu4  1  0.667  0.667  0.592  1.0
  Cu  Cu5  1  0.333  0.333  0.427  1.0
  Ge  Ge6  1  0.333  0.333  0.750  1.0
  Sb  Sb7  1  0.667  0.667  0.250  1.0
[/CIF]
.