data_[Rb6Sr3Cu6H18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Sr  0.9500  2.0000  1.3200
  Cu  1.9000  1.3500  0.8200
  H  2.2000  0.2500  0.0000
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [5.9003]
_cell_length_b [5.9003]
_cell_length_c [19.8352]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [Rb2Sr(CuH3)2]
_chemical_formula_sum '[Rb6 Sr3 Cu6 H18]'
_cell_volume [598.0127]
_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  6  0.0000  0.0000  0.2899  1.0
  Sr  Sr1  3  -0.0000  -0.0000  0.5000  1.0
  Cu  Cu2  6  0.0000  0.0000  0.0849  1.0
  H  H3  18  0.0226  0.5113  0.7523  1.0
]