The structure described by K(Cu2Sb)2 crystallizes in the trigonal R-3m space group. K(1) is bonded in a 6-coordinate geometry to six equivalent Sb(1) atoms. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 10-coordinate geometry to three equivalent Cu(1), three equivalent Cu(2), and four equivalent Sb(1) atoms. In the second Cu site, Cu(2) is bonded in a 7-coordinate geometry to one Cu(2), three equivalent Cu(1), and three equivalent Sb(1) atoms. Sb(1) is bonded in a 10-coordinate geometry to three equivalent K(1), three equivalent Cu(2), and four equivalent Cu(1) atoms. is represented by the CIF card [CIF]
data_K(Cu2Sb)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.470
_cell_length_b   9.470
_cell_length_c   9.470
_cell_angle_alpha   26.016
_cell_angle_beta   26.016
_cell_angle_gamma   26.016
_symmetry_Int_Tables_number   1
_cell_volume   143.946
_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
  K  K0  1  0.000  0.000  0.000  1.0
  Cu  Cu1  1  0.856  0.856  0.856  1.0
  Cu  Cu2  1  0.144  0.144  0.144  1.0
  Cu  Cu3  1  0.546  0.546  0.546  1.0
  Cu  Cu4  1  0.454  0.454  0.454  1.0
  Sb  Sb5  1  0.759  0.759  0.759  1.0
  Sb  Sb6  1  0.241  0.241  0.241  1.0
[/CIF]
.
The structure described by K(Cu2Sb)2 crystallizes in the trigonal R-3m space group. K(1) is bonded in a 6-coordinate geometry to six equivalent Sb(1) atoms. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 10-coordinate geometry to three equivalent Cu(1), three equivalent Cu(2), and four equivalent Sb(1) atoms. In the second Cu site, Cu(2) is bonded in a 7-coordinate geometry to one Cu(2), three equivalent Cu(1), and three equivalent Sb(1) atoms. Sb(1) is bonded in a 10-coordinate geometry to three equivalent K(1), three equivalent Cu(2), and four equivalent Cu(1) atoms. is represented by the CIF card [CIF]
data_K(Cu2Sb)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.470
_cell_length_b   9.470
_cell_length_c   9.470
_cell_angle_alpha   26.016
_cell_angle_beta   26.016
_cell_angle_gamma   26.016
_symmetry_Int_Tables_number   1
_cell_volume   143.946
_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
  K  K0  1  0.000  0.000  0.000  1.0
  Cu  Cu1  1  0.856  0.856  0.856  1.0
  Cu  Cu2  1  0.144  0.144  0.144  1.0
  Cu  Cu3  1  0.546  0.546  0.546  1.0
  Cu  Cu4  1  0.454  0.454  0.454  1.0
  Sb  Sb5  1  0.759  0.759  0.759  1.0
  Sb  Sb6  1  0.241  0.241  0.241  1.0
[/CIF]
.