data_[K9H4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  H  2.2000  0.2500  0.0000
]
_symmetry_space_group_name_H-M [P31m]
_cell_length_a [9.9149]
_cell_length_b [9.9149]
_cell_length_c [20.6215]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [157]
_chemical_formula_structural [K9H4]
_chemical_formula_sum '[K9 H4]'
_cell_volume [1755.6127]
_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  6  0.2047  0.4117  0.5564  1
  K  K1  3  0.0000  0.7512  0.3574  1
  H  H2  3  0.0000  0.5003  0.5905  1
  H  H3  1  0.0000  0.0000  0.3179  1
]