data_[Pm12Mg4Te24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Mg  1.3100  1.5000  0.8600
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [12.3385]
_cell_length_b [14.5919]
_cell_length_c [7.6586]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Pm3MgTe6]
_chemical_formula_sum '[Pm12 Mg4 Te24]'
_cell_volume [1378.8684]
_cell_formula_units_Z [4]
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
[
  Pm  Pm0  8  0.1767  0.0969  0.4868  1
  Pm  Pm1  4  0.0000  0.4024  0.3811  1
  Mg  Mg2  4  0.0000  0.2100  0.0126  1
  Te  Te3  8  0.1644  0.4597  0.6823  1
  Te  Te4  8  0.1772  0.2716  0.2112  1
  Te  Te5  4  0.0000  0.0367  0.1817  1
  Te  Te6  4  0.0000  0.2292  0.6493  1
]