data_[Sr2Er2Cu2Te6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Er  1.2400  1.7500  1.0300
  Cu  1.9000  1.3500  0.8200
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [9.0652]
_cell_length_b [4.3284]
_cell_length_c [9.6848]
_cell_angle_alpha [90.0000]
_cell_angle_beta [103.9796]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [SrErCuTe3]
_chemical_formula_sum '[Sr2 Er2 Cu2 Te6]'
_cell_volume [368.7537]
_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
[
  Sr  Sr0  2  0.1866  0.2500  0.2478  1.0
  Er  Er1  2  0.3256  0.7500  0.8367  1.0
  Cu  Cu2  2  0.0746  0.2500  0.5782  1.0
  Te  Te3  2  0.0992  0.2500  0.8637  1.0
  Te  Te4  2  0.2275  0.7500  0.5184  1.0
  Te  Te5  2  0.4369  0.7500  0.1656  1.0
]