data_[Rb3Na1Be2H8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  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 [P-3m1]
_cell_length_a [5.7106]
_cell_length_b [5.7106]
_cell_length_c [7.6397]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [164]
_chemical_formula_structural [Rb3Na(BeH4)2]
_chemical_formula_sum '[Rb3 Na1 Be2 H8]'
_cell_volume [215.7611]
_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
[
  Rb  Rb0  2  0.3333  0.6667  0.3030  1.0
  Rb  Rb1  1  0.0000  0.0000  0.0000  1.0
  Na  Na2  1  0.0000  0.0000  0.5000  1.0
  Be  Be3  2  0.3333  0.6667  0.7430  1.0
  H  H4  6  0.1935  0.3869  0.6749  1.0
  H  H5  2  0.3333  0.6667  0.9315  1.0
]