data_[Sm3Y3Er6Te18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Y  1.2200  1.8000  1.0400
  Er  1.2400  1.7500  1.0300
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [7.7110]
_cell_length_b [7.7110]
_cell_length_c [21.0640]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [SmY(ErTe3)2]
_chemical_formula_sum '[Sm3 Y3 Er6 Te18]'
_cell_volume [1084.6554]
_cell_formula_units_Z [3]
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  3  0.0000  0.0000  0.1792  1.0
  Y  Y1  3  0.0000  0.0000  0.6776  1.0
  Er  Er2  3  0.0000  0.0000  0.4913  1.0
  Er  Er3  3  0.0000  0.0000  0.9925  1.0
  Te  Te4  9  0.0064  0.3185  0.0827  1.0
  Te  Te5  9  0.0130  0.6959  0.5834  1.0
]