data_[Er8H4Ru4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  H  2.2000  0.2500  0.0000
  Ru  2.2000  1.3000  0.6610
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [13.7648]
_cell_length_b [3.4963]
_cell_length_c [6.8186]
_cell_angle_alpha [90.0000]
_cell_angle_beta [111.9316]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Er2HRu]
_chemical_formula_sum '[Er8 H4 Ru4]'
_cell_volume [304.4058]
_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
[
  Er  Er0  4  0.0169  0.5000  0.2545  1
  Er  Er1  4  0.2111  0.0000  0.7536  1
  H  H2  4  0.1059  0.5000  0.5968  1
  Ru  Ru3  4  0.1189  0.0000  0.0593  1
]