data_[Sm2Ho2Er4Tl4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Ho  1.2300  1.7500  1.0410
  Er  1.2400  1.7500  1.0300
  Tl  1.6200  1.9000  1.3325
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [5.1443]
_cell_length_b [9.8781]
_cell_length_c [6.8321]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [SmHo(ErTl)2]
_chemical_formula_sum '[Sm2 Ho2 Er4 Tl4]'
_cell_volume [347.1793]
_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
[
  Sm  Sm0  2  0.0000  0.4585  0.9610  1.0
  Ho  Ho1  2  0.5000  0.3089  0.6806  1.0
  Er  Er2  2  0.0000  0.1833  0.3363  1.0
  Er  Er3  2  0.5000  0.0432  0.0509  1.0
  Tl  Tl4  2  0.0000  0.1328  0.7974  1.0
  Tl  Tl5  2  0.5000  0.3622  0.2194  1.0
]