data_[Pm4Ho8Er4Tm2]
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 [C2/m]
_cell_length_a [18.5430]
_cell_length_b [3.5750]
_cell_length_c [9.4962]
_cell_angle_alpha [90.0000]
_cell_angle_beta [115.7157]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm2Ho4Er2Tm]
_chemical_formula_sum '[Pm4 Ho8 Er4 Tm2]'
_cell_volume [567.1667]
_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
[
  Pm  Pm0  4  0.1654  0.5000  0.9984  1
  Ho  Ho1  4  0.0193  0.5000  0.3350  1
  Ho  Ho2  4  0.1855  0.0000  0.3354  1
  Er  Er3  4  0.1471  0.0000  0.6628  1
  Tm  Tm4  2  0.0000  0.0000  0.0000  1
]