data_[K1Fe2W1]
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
  W  2.3600  1.3500  0.7667
]
_symmetry_space_group_name_H-M [Pmm2]
_cell_length_a [2.7484]
_cell_length_b [3.5579]
_cell_length_c [8.0899]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [25]
_chemical_formula_structural [KFe2W]
_chemical_formula_sum '[K1 Fe2 W1]'
_cell_volume [79.1088]
_cell_formula_units_Z [1]
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  1  0.0000  0.0000  0.4843  1
  Fe  Fe1  1  0.0000  0.0000  0.0116  1
  Fe  Fe2  1  0.5000  0.5000  0.1478  1
  W  W3  1  0.5000  0.5000  0.8563  1
]