data_[Nd2Er2Si8Ni4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nd  1.1400  1.8500  1.2765
  Er  1.2400  1.7500  1.0300
  Si  1.9000  1.1000  0.5400
  Ni  1.9100  1.3500  0.7400
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [4.0092]
_cell_length_b [4.0586]
_cell_length_c [16.3733]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [NdEr(Si2Ni)2]
_chemical_formula_sum '[Nd2 Er2 Si8 Ni4]'
_cell_volume [266.4186]
_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
[
  Nd  Nd0  2  0.5000  0.0000  0.3950  1
  Er  Er1  2  0.0000  0.0000  0.6068  1
  Si  Si2  2  0.0000  0.0000  0.2485  1
  Si  Si3  2  0.0000  0.0000  0.9616  1
  Si  Si4  2  0.5000  0.0000  0.0419  1
  Si  Si5  2  0.5000  0.0000  0.7480  1
  Ni  Ni6  2  0.0000  0.0000  0.8195  1
  Ni  Ni7  2  0.5000  0.0000  0.1787  1
]