data_K2BePb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.49
_cell_length_b   4.49
_cell_length_c   9.63
_cell_angle_alpha   102.55
_cell_angle_beta   102.55
_cell_angle_gamma   60.06
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2BePb
_chemical_formula_sum   'K2 Be1 Pb1'
_cell_volume   162.88
_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  0.06  0.0  0.99  1.0
  K  K2  1  0.06  0.0  0.01  1.0
  Be  Be0  1  0.25  0.0  0.5  1.0
  Pb  Pb3  1  0.65  0.0  0.5  1.0

data_K2BePb
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.49
_cell_length_b   4.49
_cell_length_c   9.63
_cell_angle_alpha   77.45
_cell_angle_beta   77.45
_cell_angle_gamma   60.06
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2BePb
_chemical_formula_sum   'K2 Be1 Pb1'
_cell_volume   162.88
_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  0.94  0.0  0.99  1.0
  K  K1  1  0.94  0.0  0.01  1.0
  Be  Be2  1  0.75  0.0  0.5  1.0
  Pb  Pb3  1  0.35  0.0  0.5  1.0

K K Be Pb