data_[K8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
]
_symmetry_space_group_name_H-M [Cm]
_cell_length_a [8.0566]
_cell_length_b [4.7941]
_cell_length_c [15.4295]
_cell_angle_alpha [90.0000]
_cell_angle_beta [101.0232]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [K]
_chemical_formula_sum '[K8]'
_cell_volume [584.9497]
_cell_formula_units_Z [8]
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  0.0653  0.5000  0.2528  1.0
  K  K1  2  0.1609  0.5000  0.7521  1.0
  K  K2  2  0.1685  0.0000  0.0035  1.0
  K  K3  2  0.2502  0.0000  0.5022  1.0
]