data_Sr2PtPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.89
_cell_length_b   6.21
_cell_length_c   6.21
_cell_angle_alpha   43.68
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr2PtPb
_chemical_formula_sum   'Sr2 Pt1 Pb1'
_cell_volume   130.21
_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
  Sr  Sr2  1  0.45  0.0  0.2  1.0
  Sr  Sr3  1  0.0  0.0  0.44  1.0
  Pt  Pt1  1  0.0  0.0  0.03  1.0
  Pb  Pb0  1  0.45  0.0  0.59  1.0

data_Sr2PtPb
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.62
_cell_length_b   4.89
_cell_length_c   6.21
_cell_angle_alpha   90.0
_cell_angle_beta   111.84
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr2PtPb
_chemical_formula_sum   'Sr2 Pt1 Pb1'
_cell_volume   130.21
_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
  Sr  Sr0  1  0.56  0.0  0.56  1.0
  Sr  Sr1  1  0.8  0.45  0.8  1.0
  Pt  Pt2  1  0.97  0.0  0.97  1.0
  Pb  Pb3  1  0.41  0.45  0.41  1.0

Sr Sr Pt Pb