data_KSb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.14
_cell_length_b   7.14
_cell_length_c   7.14
_cell_angle_alpha   145.22
_cell_angle_beta   131.82
_cell_angle_gamma   60.78
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KSb
_chemical_formula_sum   'K2 Sb2'
_cell_volume   153.2
_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
  K  K0  1  0.13  0.54  0.76  1.0
  K  K1  1  0.0  0.37  0.4  1.0
  Sb  Sb2  1  0.0  0.46  0.07  1.0
  Sb  Sb3  1  0.13  0.46  0.08  1.0

data_KSb
_symmetry_space_group_name_H-M   P-1
_cell_length_a   4.27
_cell_length_b   5.83
_cell_length_c   7.14
_cell_angle_alpha   114.09
_cell_angle_beta   107.39
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   KSb
_chemical_formula_sum   'K2 Sb2'
_cell_volume   153.2
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-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  2  0.41  0.1  0.03  1.0
  Sb  Sb1  2  0.5  0.5  0.56  1.0

K K Sb Sb