data_[K3V6Ag6O21]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  V  1.6300  1.3500  0.7775
  Ag  1.9300  1.6000  1.0867
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R32]
_cell_length_a [5.9618]
_cell_length_b [5.9618]
_cell_length_c [24.6314]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [155]
_chemical_formula_structural [KV2Ag2O7]
_chemical_formula_sum '[K3 V6 Ag6 O21]'
_cell_volume [758.1780]
_cell_formula_units_Z [3]
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  3  0.0000  0.0000  0.5000  1.0
  V  V1  6  0.0000  0.0000  0.0734  1.0
  Ag  Ag2  6  0.0000  0.0000  0.2402  1.0
  O  O3  18  0.0094  0.2765  0.9024  1.0
  O  O4  3  0.0000  0.0000  0.0000  1.0
]