data_[K2Fe2Cu2Te6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Fe  1.8300  1.4000  0.8525
  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 [8.7890]
_cell_length_b [3.9574]
_cell_length_c [10.3124]
_cell_angle_alpha [90.0000]
_cell_angle_beta [114.5267]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [KFeCuTe3]
_chemical_formula_sum '[K2 Fe2 Cu2 Te6]'
_cell_volume [326.3125]
_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  0.2440  0.7500  0.2743  1.0
  Fe  Fe1  2  0.3123  0.2500  0.8382  1.0
  Cu  Cu2  2  0.0714  0.7500  0.5945  1.0
  Te  Te3  2  0.1260  0.7500  0.8621  1.0
  Te  Te4  2  0.2548  0.2500  0.5680  1.0
  Te  Te5  2  0.4742  0.2500  0.1206  1.0
]