data_[Ti4Si8Ni4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ti  1.5400  1.4000  0.8517
  Si  1.9000  1.1000  0.5400
  Ni  1.9100  1.3500  0.7400
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [3.4794]
_cell_length_b [17.0379]
_cell_length_c [3.7267]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [TiSi2Ni]
_chemical_formula_sum '[Ti4 Si8 Ni4]'
_cell_volume [220.9268]
_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
[
  Ti  Ti0  4  0.0000  0.0849  0.2500  1
  Si  Si1  4  0.0000  0.2544  0.7500  1
  Si  Si2  4  0.0000  0.4603  0.2500  1
  Ni  Ni3  4  0.0000  0.3322  0.2500  1
]