data_[Ce2Pm6Er4Tm12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ce  1.1200  1.8500  1.0800
  Pm  1.1300  1.8500  1.1100
  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 [6.1329]
_cell_length_b [10.6182]
_cell_length_c [11.6584]
_cell_angle_alpha [90.0000]
_cell_angle_beta [100.0865]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [CePm3(ErTm3)2]
_chemical_formula_sum '[Ce2 Pm6 Er4 Tm12]'
_cell_volume [747.4580]
_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
[
  Ce  Ce0  2  0.0000  0.0000  0.0000  1
  Pm  Pm1  4  0.0000  0.1677  0.5000  1
  Pm  Pm2  2  0.0000  0.5000  0.5000  1
  Er  Er3  4  0.0000  0.3332  0.0000  1
  Tm  Tm4  8  0.2482  0.1655  0.2469  1
  Tm  Tm5  4  0.2486  0.0000  0.7530  1
]