data_[Rb4Cu4H8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Cu  1.9000  1.3500  0.8200
  H  2.2000  0.2500  0.0000
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [5.7384]
_cell_length_b [3.5332]
_cell_length_c [13.0839]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [RbCuH2]
_chemical_formula_sum '[Rb4 Cu4 H8]'
_cell_volume [265.2767]
_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  0.0663  0.7500  0.1559  1.0
  Cu  Cu1  4  0.0626  0.2500  0.4376  1.0
  H  H2  4  0.1617  0.2500  0.3245  1.0
  H  H3  4  0.1730  0.7500  0.4908  1.0
]