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 [C2/m]
_cell_length_a [8.1437]
_cell_length_b [4.7430]
_cell_length_c [15.3494]
_cell_angle_alpha [90.0000]
_cell_angle_beta [101.9323]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K]
_chemical_formula_sum '[K8]'
_cell_volume [580.0648]
_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  4  0.1365  0.0000  0.3750  1.0
  K  K1  4  0.2072  0.5000  0.1251  1.0
]