data_[Dy16Ni4Se8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Dy  1.2200  1.7500  1.1310
  Ni  1.9100  1.3500  0.7400
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [3.8276]
_cell_length_b [13.1554]
_cell_length_c [13.9777]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Dy4NiSe2]
_chemical_formula_sum '[Dy16 Ni4 Se8]'
_cell_volume [703.8203]
_cell_formula_units_Z [4]
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
[
  Dy  Dy0  8  0.0000  0.2074  0.6290  1
  Dy  Dy1  4  0.0000  0.0414  0.2500  1
  Dy  Dy2  4  0.0000  0.5000  0.0000  1
  Ni  Ni3  4  0.0000  0.3920  0.2500  1
  Se  Se4  8  0.0000  0.1423  0.0665  1
]