data_[Pm4Dy12Mg4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Dy  1.2200  1.7500  1.1310
  Mg  1.3100  1.5000  0.8600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.9675]
_cell_length_b [3.6962]
_cell_length_c [12.7977]
_cell_angle_alpha [90.0000]
_cell_angle_beta [93.2751]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [PmDy3Mg]
_chemical_formula_sum '[Pm4 Dy12 Mg4]'
_cell_volume [612.3989]
_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  4  0.2344  0.0000  0.7582  1
  Dy  Dy1  4  0.0367  0.0000  0.1872  1
  Dy  Dy2  4  0.1337  0.5000  0.9763  1
  Dy  Dy3  4  0.1496  0.0000  0.4421  1
  Mg  Mg4  4  0.0563  0.5000  0.6245  1
]