data_[Pm4Ho8Er20Tm4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Ho  1.2300  1.7500  1.0410
  Er  1.2400  1.7500  1.0300
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [5.5541]
_cell_length_b [19.6037]
_cell_length_c [10.5025]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [PmHo2Er5Tm]
_chemical_formula_sum '[Pm4 Ho8 Er20 Tm4]'
_cell_volume [1143.5163]
_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  0.0000  0.4157  0.4542  1
  Ho  Ho1  4  0.0000  0.1107  0.7356  1
  Ho  Ho2  4  0.0000  0.1129  0.3175  1
  Er  Er3  4  0.0000  0.0184  0.0239  1
  Er  Er4  4  0.0000  0.2815  0.3122  1
  Er  Er5  4  0.0000  0.2987  0.7097  1
  Er  Er6  4  0.0000  0.3867  0.0217  1
  Er  Er7  4  0.0000  0.4791  0.7374  1
  Tm  Tm8  4  0.0000  0.1998  0.0119  1
]