data_[Sm2Y2Ni8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Y  1.2200  1.8000  1.0400
  Ni  1.9100  1.3500  0.7400
]
_symmetry_space_group_name_H-M [Imm2]
_cell_length_a [4.0117]
_cell_length_b [7.1178]
_cell_length_c [7.1450]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [SmYNi4]
_chemical_formula_sum '[Sm2 Y2 Ni8]'
_cell_volume [204.0211]
_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
[
  Sm  Sm0  2  0.0000  0.0000  0.0328  1
  Y  Y1  2  0.0000  0.5000  0.9685  1
  Ni  Ni2  4  0.0000  0.2074  0.6615  1
  Ni  Ni3  4  0.0000  0.2858  0.3379  1
]