data_[Rb4Be8As4H8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Be  1.5700  1.0500  0.5900
  As  2.1800  1.1500  0.6600
  H  2.2000  0.2500  0.0000
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [7.2443]
_cell_length_b [13.0257]
_cell_length_c [4.4042]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [RbBe2AsH2]
_chemical_formula_sum '[Rb4 Be8 As4 H8]'
_cell_volume [415.5943]
_cell_formula_units_Z [4]
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  0.0000  0.3281  0.2500  1.0
  Be  Be1  8  0.1613  0.0000  0.0000  1.0
  As  As2  4  0.0000  0.1240  0.7500  1.0
  H  H3  8  0.2154  0.5421  0.2500  1.0
]