data_[K1Na1B2H8]
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
  B  2.0400  0.8500  0.4100
  H  2.2000  0.2500  0.0000
]
_symmetry_space_group_name_H-M [P-3]
_cell_length_a [4.4205]
_cell_length_b [4.4205]
_cell_length_c [7.5373]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [147]
_chemical_formula_structural [KNa(BH4)2]
_chemical_formula_sum '[K1 Na1 B2 H8]'
_cell_volume [127.5520]
_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  1  0.0000  0.0000  0.0000  1.0
  Na  Na1  1  0.0000  0.0000  0.5000  1.0
  B  B2  2  0.3333  0.6667  0.2634  1.0
  H  H3  6  0.0395  0.5887  0.3148  1.0
  H  H4  2  0.3333  0.6667  0.1004  1.0
]