data_[Sr4Cu4Te8O28]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Cu  1.9000  1.3500  0.8200
  Te  2.1000  1.4000  1.2933
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pbcm]
_cell_length_a [7.1492]
_cell_length_b [14.9721]
_cell_length_c [5.4489]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [57]
_chemical_formula_structural [SrCuTe2O7]
_chemical_formula_sum '[Sr4 Cu4 Te8 O28]'
_cell_volume [583.2417]
_cell_formula_units_Z [4]
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  4  0.2329  0.5422  0.2500  1
  Cu  Cu1  4  0.2626  0.1094  0.2500  1
  Te  Te2  4  0.0071  0.1697  0.7500  1
  Te  Te3  4  0.4855  0.6762  0.7500  1
  O  O4  8  0.0784  0.0869  0.0013  1
  O  O5  8  0.4587  0.0967  0.0087  1
  O  O6  4  0.1118  0.7500  0.0000  1
  O  O7  4  0.2340  0.6070  0.7500  1
  O  O8  4  0.2417  0.2323  0.7500  1
]