data_[Na4Tm2Mg2Pb4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Tm  1.2500  1.7500  1.0950
  Mg  1.3100  1.5000  0.8600
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [4.9357]
_cell_length_b [9.3547]
_cell_length_c [7.2454]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [Na2TmMgPb2]
_chemical_formula_sum '[Na4 Tm2 Mg2 Pb4]'
_cell_volume [334.5304]
_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
[
  Na  Na0  2  0.0000  0.1651  0.8189  1
  Na  Na1  2  0.5000  0.0519  0.5341  1
  Tm  Tm2  2  0.0000  0.4725  0.4905  1
  Mg  Mg3  2  0.5000  0.3128  0.1712  1
  Pb  Pb4  2  0.0000  0.1749  0.2748  1
  Pb  Pb5  2  0.5000  0.3787  0.7560  1
]