data_[Tm4Lu2Si8Ni8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tm  1.2500  1.7500  1.0950
  Lu  1.2700  1.7500  1.0010
  Si  1.9000  1.1000  0.5400
  Ni  1.9100  1.3500  0.7400
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [3.9897]
_cell_length_b [6.5188]
_cell_length_c [13.1254]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [Tm2Lu(SiNi)4]
_chemical_formula_sum '[Tm4 Lu2 Si8 Ni8]'
_cell_volume [341.3632]
_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
[
  Tm  Tm0  4  0.0000  0.5000  0.1284  1
  Lu  Lu1  2  0.0000  0.0000  0.0000  1
  Si  Si2  4  0.0000  0.0000  0.2179  1
  Si  Si3  4  0.0000  0.1888  0.5000  1
  Ni  Ni4  8  0.0000  0.3045  0.3243  1
]