data_[K2Fe2Te4]
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
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [18.7629]
_cell_length_b [3.5089]
_cell_length_c [12.4388]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [KFeTe2]
_chemical_formula_sum '[K2 Fe2 Te4]'
_cell_volume [818.9267]
_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  0.5000  0.0000  0.8952  1
  Fe  Fe1  2  0.5000  0.0000  0.6405  1
  Te  Te2  4  0.3997  0.0000  0.1479  1
]