data_[Rb4H4C4O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  H  2.2000  0.2500  0.0000
  C  2.5500  0.7000  0.3000
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [7.3182]
_cell_length_b [7.2752]
_cell_length_c [6.5682]
_cell_angle_alpha [90.0000]
_cell_angle_beta [122.9997]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [RbHCO2]
_chemical_formula_sum '[Rb4 H4 C4 O8]'
_cell_volume [293.2894]
_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  0.1508  0.7500  1
  H  H1  4  0.0000  0.2520  0.2500  1
  C  C2  4  0.0000  0.4059  0.2500  1
  O  O3  8  0.1795  0.4834  0.3191  1
]