data_[K4Be2H8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Be  1.5700  1.0500  0.5900
  H  2.2000  0.2500  0.0000
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [5.6308]
_cell_length_b [5.5174]
_cell_length_c [7.8166]
_cell_angle_alpha [90.0000]
_cell_angle_beta [101.4865]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [K2BeH4]
_chemical_formula_sum '[K4 Be2 H8]'
_cell_volume [237.9794]
_cell_formula_units_Z [2]
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  0.2393  0.7500  0.4573  1.0
  K  K1  2  0.2755  0.7500  0.9704  1.0
  Be  Be2  2  0.3018  0.2500  0.2245  1.0
  H  H3  4  0.4566  0.0389  0.2651  1.0
  H  H4  2  0.1101  0.2500  0.3310  1.0
  H  H5  2  0.2023  0.2500  0.0389  1.0
]