data_[Er4Ni2P2]
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
  P  2.1900  1.0000  0.5500
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [5.5566]
_cell_length_b [3.8889]
_cell_length_c [7.8129]
_cell_angle_alpha [90.0000]
_cell_angle_beta [110.5430]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Er2NiP]
_chemical_formula_sum '[Er4 Ni2 P2]'
_cell_volume [158.0948]
_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  2  0.2217  0.2500  0.4425  1.0
  Er  Er1  2  0.3042  0.7500  0.0862  1.0
  Ni  Ni2  2  0.3425  0.7500  0.7199  1.0
  P  P3  2  0.1365  0.2500  0.7927  1.0
]