data_K2AsPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.29
_cell_length_b   4.39
_cell_length_c   6.89
_cell_angle_alpha   90.0
_cell_angle_beta   111.69
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2AsPb
_chemical_formula_sum   'K2 As1 Pb1'
_cell_volume   148.56
_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  K1  1  0.0  0.19  0.65  1.0
  K  K2  1  0.68  0.0  0.31  1.0
  As  As0  1  0.39  0.0  0.44  1.0
  Pb  Pb3  1  0.33  0.19  0.2  1.0

data_K2AsPb
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.39
_cell_length_b   5.29
_cell_length_c   6.89
_cell_angle_alpha   111.69
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2AsPb
_chemical_formula_sum   'K2 As1 Pb1'
_cell_volume   148.56
_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  0.32  0.69  1.0
  K  K1  1  0.81  1.0  0.35  1.0
  As  As2  1  0.0  0.61  0.56  1.0
  Pb  Pb3  1  0.81  0.67  0.8  1.0

K K As Pb
K K As Pb 0 1 - o o 0 2 o o o 1 3 o o o 1 2 o o o 2 3 o o o 