data_[Sm2Er2Tm4Tl4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Er  1.2400  1.7500  1.0300
  Tm  1.2500  1.7500  1.0950
  Tl  1.6200  1.9000  1.3325
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [5.0828]
_cell_length_b [9.9285]
_cell_length_c [6.7899]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [SmEr(TmTl)2]
_chemical_formula_sum '[Sm2 Er2 Tm4 Tl4]'
_cell_volume [342.6481]
_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  0.4584  0.4602  1
  Er  Er1  2  0.5000  0.3076  0.1792  1
  Tm  Tm2  2  0.0000  0.1831  0.8377  1
  Tm  Tm3  2  0.5000  0.0430  0.5515  1
  Tl  Tl4  2  0.0000  0.1321  0.2978  1
  Tl  Tl5  2  0.5000  0.3623  0.7193  1
]