data_K2SiSb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.47
_cell_length_b   4.15
_cell_length_c   6.84
_cell_angle_alpha   90.0
_cell_angle_beta   113.43
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2SiSb
_chemical_formula_sum   'K2 Si1 Sb1'
_cell_volume   142.77
_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  0.14  0.08  0.6  1.0
  K  K1  1  0.65  0.0  0.2  1.0
  Si  Si3  1  0.43  0.0  0.5  1.0
  Sb  Sb2  1  0.38  0.08  0.12  1.0

data_K2SiSb
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.15
_cell_length_b   5.47
_cell_length_c   6.84
_cell_angle_alpha   113.43
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2SiSb
_chemical_formula_sum   'K2 Si1 Sb1'
_cell_volume   142.77
_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  0.0  0.35  0.8  1.0
  K  K1  1  0.92  0.86  0.4  1.0
  Si  Si2  1  0.0  0.57  0.5  1.0
  Sb  Sb3  1  0.92  0.62  0.88  1.0

K K Si Sb