data_[Na8Be2H10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Be  1.5700  1.0500  0.5900
  H  2.2000  0.2500  0.0000
]
_symmetry_space_group_name_H-M [I4]
_cell_length_a [7.4766]
_cell_length_b [7.4766]
_cell_length_c [4.5861]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [79]
_chemical_formula_structural [Na4BeH5]
_chemical_formula_sum '[Na8 Be2 H10]'
_cell_volume [256.3655]
_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
[
  Na  Na0  8  0.1145  0.2958  0.4913  1
  Be  Be1  2  0.0000  0.0000  0.9280  1
  H  H2  8  0.0753  0.2037  0.9981  1
  H  H3  2  0.0000  0.0000  0.6041  1
]