data_[K2Sm6Er4Te12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Sm  1.1700  1.8500  1.2290
  Er  1.2400  1.7500  1.0300
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [19.4753]
_cell_length_b [4.4079]
_cell_length_c [9.0348]
_cell_angle_alpha [90.0000]
_cell_angle_beta [103.7136]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [KSm3(ErTe3)2]
_chemical_formula_sum '[K2 Sm6 Er4 Te12]'
_cell_volume [753.4883]
_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
[
  K  K0  2  0.0000  0.5000  0.0000  1
  Sm  Sm1  4  0.1576  0.0000  0.8155  1
  Sm  Sm2  2  0.0000  0.5000  0.5000  1
  Er  Er3  4  0.1664  0.0000  0.3389  1
  Te  Te4  4  0.0067  0.0000  0.2621  1
  Te  Te5  4  0.1691  0.5000  0.5752  1
  Te  Te6  4  0.1749  0.5000  0.0915  1
]