data_[Rb3Na3H6]
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
  H  2.2000  0.2500  0.0000
]
_symmetry_space_group_name_H-M [R3m]
_cell_length_a [3.7481]
_cell_length_b [3.7481]
_cell_length_c [19.7755]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [160]
_chemical_formula_structural [RbNaH2]
_chemical_formula_sum '[Rb3 Na3 H6]'
_cell_volume [240.5936]
_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
[
  Rb  Rb0  3  0.0000  0.0000  0.5017  1.0
  Na  Na1  3  0.0000  0.0000  0.3321  1.0
  H  H2  3  0.0000  0.0000  0.7365  1.0
  H  H3  3  0.0000  0.0000  0.9297  1.0
]