The material structure described by Cu2Sb crystallizes in the tetragonal P4/nmm space group. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to four equivalent Cu(1), four equivalent Cu(2), and four equivalent Sb(1) atoms to form a mixture of distorted corner and face-sharing CuCu8Sb4 cuboctahedra. In the second Cu site, Cu(2) is bonded in a 9-coordinate geometry to four equivalent Cu(1) and five equivalent Sb(1) atoms. Sb(1) is bonded in a 9-coordinate geometry to four equivalent Cu(1) and five equivalent Cu(2) atoms. is represented by the CIF card [CIF]
data_Cu2Sb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.020
_cell_length_b   4.020
_cell_length_c   5.993
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   96.868
_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  0.750  0.250  0.000  1.0
  Cu  Cu1  1  0.250  0.750  0.000  1.0
  Cu  Cu2  1  0.250  0.250  0.262  1.0
  Cu  Cu3  1  0.750  0.750  0.738  1.0
  Sb  Sb4  1  0.250  0.250  0.702  1.0
  Sb  Sb5  1  0.750  0.750  0.298  1.0
[/CIF]
.
The material structure described by Cu2Sb crystallizes in the tetragonal P4/nmm space group. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to four equivalent Cu(1), four equivalent Cu(2), and four equivalent Sb(1) atoms to form a mixture of distorted corner and face-sharing CuCu8Sb4 cuboctahedra. In the second Cu site, Cu(2) is bonded in a 9-coordinate geometry to four equivalent Cu(1) and five equivalent Sb(1) atoms. Sb(1) is bonded in a 9-coordinate geometry to four equivalent Cu(1) and five equivalent Cu(2) atoms. is represented by the CIF card [CIF]
data_Cu2Sb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.020
_cell_length_b   4.020
_cell_length_c   5.993
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   96.868
_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  0.750  0.250  0.000  1.0
  Cu  Cu1  1  0.250  0.750  0.000  1.0
  Cu  Cu2  1  0.250  0.250  0.262  1.0
  Cu  Cu3  1  0.750  0.750  0.738  1.0
  Sb  Sb4  1  0.250  0.250  0.702  1.0
  Sb  Sb5  1  0.750  0.750  0.298  1.0
[/CIF]
.