data_[Eu4Er4H4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Eu  1.2000  1.8500  1.1985
  Er  1.2400  1.7500  1.0300
  H  2.2000  0.2500  0.0000
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [8.4617]
_cell_length_b [5.2724]
_cell_length_c [7.3039]
_cell_angle_alpha [90.0000]
_cell_angle_beta [114.1089]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [EuErH]
_chemical_formula_sum '[Eu4 Er4 H4]'
_cell_volume [297.4286]
_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
[
  Eu  Eu0  4  0.1379  0.2419  0.4403  1.0
  Er  Er1  4  0.3964  0.7454  0.8202  1.0
  H  H2  4  0.3855  0.5141  0.0671  1.0
]