The compound described by Ge3Cu is Sodium arsenide structured and crystallizes in the hexagonal P6_3/mmc space group. Cu(1) is bonded in a 11-coordinate geometry to three equivalent Ge(2) and eight equivalent Ge(1) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 10-coordinate geometry to four equivalent Cu(1), three equivalent Ge(1), and three equivalent Ge(2) atoms. In the second Ge site, Ge(2) is bonded in a distorted trigonal planar geometry to three equivalent Cu(1) and six equivalent Ge(1) atoms. is represented by the CIF card [CIF]
data_CuGe3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.345
_cell_length_b   4.345
_cell_length_c   8.935
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   146.113
_cell_formula_units_Z   2
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  0.333  0.667  0.250  1.0
  Cu  Cu1  1  0.667  0.333  0.750  1.0
  Ge  Ge2  1  0.333  0.667  0.576  1.0
  Ge  Ge3  1  0.667  0.333  0.424  1.0
  Ge  Ge4  1  0.667  0.333  0.076  1.0
  Ge  Ge5  1  0.333  0.667  0.924  1.0
  Ge  Ge6  1  0.000  0.000  0.250  1.0
  Ge  Ge7  1  0.000  0.000  0.750  1.0
[/CIF]
.
The compound described by Ge3Cu is Sodium arsenide structured and crystallizes in the hexagonal P6_3/mmc space group. Cu(1) is bonded in a 11-coordinate geometry to three equivalent Ge(2) and eight equivalent Ge(1) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 10-coordinate geometry to four equivalent Cu(1), three equivalent Ge(1), and three equivalent Ge(2) atoms. In the second Ge site, Ge(2) is bonded in a distorted trigonal planar geometry to three equivalent Cu(1) and six equivalent Ge(1) atoms. is represented by the CIF card [CIF]
data_CuGe3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.345
_cell_length_b   4.345
_cell_length_c   8.935
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   146.113
_cell_formula_units_Z   2
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  0.333  0.667  0.250  1.0
  Cu  Cu1  1  0.667  0.333  0.750  1.0
  Ge  Ge2  1  0.333  0.667  0.576  1.0
  Ge  Ge3  1  0.667  0.333  0.424  1.0
  Ge  Ge4  1  0.667  0.333  0.076  1.0
  Ge  Ge5  1  0.333  0.667  0.924  1.0
  Ge  Ge6  1  0.000  0.000  0.250  1.0
  Ge  Ge7  1  0.000  0.000  0.750  1.0
[/CIF]
.