data_[Er16Ni2Ru4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Ni  1.9100  1.3500  0.7400
  Ru  2.2000  1.3000  0.6610
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [17.0493]
_cell_length_b [4.7484]
_cell_length_c [6.7000]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.6097]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Er8NiRu2]
_chemical_formula_sum '[Er16 Ni2 Ru4]'
_cell_volume [516.9943]
_cell_formula_units_Z [2]
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  0.0309  0.0000  0.7898  1.0
  Er  Er1  4  0.0958  0.5000  0.4544  1.0
  Er  Er2  4  0.1674  0.5000  0.9638  1.0
  Er  Er3  4  0.2049  0.0000  0.3141  1.0
  Ni  Ni4  2  0.0000  0.5000  0.0000  1.0
  Ru  Ru5  4  0.1846  0.0000  0.7023  1.0
]