data_[K6Na3Cr9H36]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Na  0.9300  1.8000  1.1600
  Cr  1.6600  1.4000  0.9400
  H  2.2000  0.2500  0.0000
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [6.4183]
_cell_length_b [6.4183]
_cell_length_c [17.1813]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [K2Na(CrH4)3]
_chemical_formula_sum '[K6 Na3 Cr9 H36]'
_cell_volume [612.9427]
_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  6  0.0000  0.0000  0.3802  1.0
  Na  Na1  3  0.0000  0.0000  0.0000  1.0
  Cr  Cr2  9  0.0000  0.5000  0.5000  1.0
  H  H3  18  0.0172  0.5086  0.4011  1.0
  H  H4  18  0.0477  0.5238  0.8235  1.0
]