data_[Mg1Ta1Pb2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mg  1.3100  1.5000  0.8600
  Ta  1.5000  1.4500  0.8200
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [P4mm]
_cell_length_a [3.0909]
_cell_length_b [3.0909]
_cell_length_c [10.7181]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [99]
_chemical_formula_structural [MgTaPb2]
_chemical_formula_sum '[Mg1 Ta1 Pb2]'
_cell_volume [102.3978]
_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
[
  Mg  Mg0  1  0.5000  0.5000  0.7223  1
  Ta  Ta1  1  0.0000  0.0000  0.5240  1
  Pb  Pb2  1  0.0000  0.0000  0.9542  1
  Pb  Pb3  1  0.5000  0.5000  0.2995  1
]