data_[Er4Co2Ni2O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Co  1.8800  1.3500  0.7683
  Ni  1.9100  1.3500  0.7400
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [5.1825]
_cell_length_b [5.5668]
_cell_length_c [9.0430]
_cell_angle_alpha [90.0000]
_cell_angle_beta [124.7019]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [Er2CoNiO6]
_chemical_formula_sum '[Er4 Co2 Ni2 O12]'
_cell_volume [214.4846]
_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  0.2733  0.0763  0.2511  1
  Co  Co1  2  0.0000  0.0000  0.5000  1
  Ni  Ni2  2  0.5000  0.0000  0.0000  1
  O  O3  4  0.1307  0.0364  0.7408  1
  O  O4  4  0.2381  0.7051  0.5577  1
  O  O5  4  0.3526  0.1856  0.5529  1
]