data_[K2Nb1Zn2O6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Nb  1.6000  1.4500  0.8200
  Zn  1.6500  1.3500  0.8800
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P-31m]
_cell_length_a [5.3918]
_cell_length_b [5.3918]
_cell_length_c [6.3095]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [162]
_chemical_formula_structural [K2NbZn2O6]
_chemical_formula_sum '[K2 Nb1 Zn2 O6]'
_cell_volume [158.8543]
_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  2  0.3333  0.6667  0.5000  1
  Nb  Nb1  1  0.0000  0.0000  0.0000  1
  Zn  Zn2  2  0.3333  0.6667  0.0000  1
  O  O3  6  0.0000  0.3185  0.8259  1
]