data_[Eu2Er2Te6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Eu  1.2000  1.8500  1.1985
  Er  1.2400  1.7500  1.0300
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [Cmm2]
_cell_length_a [5.7233]
_cell_length_b [10.4425]
_cell_length_c [18.2620]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [35]
_chemical_formula_structural [EuErTe3]
_chemical_formula_sum '[Eu2 Er2 Te6]'
_cell_volume [1091.4420]
_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
[
  Eu  Eu0  2  0.0000  0.5000  0.5646  1
  Er  Er1  2  0.0000  0.0000  0.4311  1
  Te  Te2  4  0.0000  0.1679  0.5592  1
  Te  Te3  2  0.0000  0.5000  0.3859  1
]