data_[Pr4Er16Al2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Er  1.2400  1.7500  1.0300
  Al  1.6100  1.2500  0.6750
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [19.2253]
_cell_length_b [5.4463]
_cell_length_c [6.4098]
_cell_angle_alpha [90.0000]
_cell_angle_beta [94.4274]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pr2Er8Al]
_chemical_formula_sum '[Pr4 Er16 Al2]'
_cell_volume [669.1492]
_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
[
  Pr  Pr0  4  0.2434  0.0000  0.3304  1.0
  Er  Er1  4  0.0419  0.0000  0.2576  1.0
  Er  Er2  4  0.0767  0.5000  0.6056  1.0
  Er  Er3  4  0.1508  0.0000  0.8130  1.0
  Er  Er4  4  0.1554  0.5000  0.1246  1.0
  Al  Al5  2  0.0000  0.5000  0.0000  1.0
]