data_[Li2Mg2Pb4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  Mg  1.3100  1.5000  0.8600
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [Imm2]
_cell_length_a [4.0161]
_cell_length_b [4.8027]
_cell_length_c [10.4642]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [LiMgPb2]
_chemical_formula_sum '[Li2 Mg2 Pb4]'
_cell_volume [201.8370]
_cell_formula_units_Z [2]
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
[
  Li  Li0  2  0.0000  0.0000  0.4976  1.0
  Mg  Mg1  2  0.0000  0.5000  0.2411  1.0
  Pb  Pb2  2  0.0000  0.0000  0.0004  1.0
  Pb  Pb3  2  0.0000  0.5000  0.7610  1.0
]