data_[Rb6As2H8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  As  2.1800  1.1500  0.6600
  H  2.2000  0.2500  0.0000
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [19.9772]
_cell_length_b [4.3340]
_cell_length_c [6.0838]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.3444]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb3AsH4]
_chemical_formula_sum '[Rb6 As2 H8]'
_cell_volume [505.4529]
_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
[
  Rb  Rb0  4  0.1383  0.0000  0.1200  1
  Rb  Rb1  2  0.0000  0.0000  0.5000  1
  As  As2  2  0.0000  0.5000  0.0000  1
  H  H3  4  0.1004  0.5000  0.4068  1
  H  H4  4  0.1311  0.5000  0.5223  1
]