data_[Tm4Si2Ni2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tm  1.2500  1.7500  1.0950
  Si  1.9000  1.1000  0.5400
  Ni  1.9100  1.3500  0.7400
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [4.0113]
_cell_length_b [3.9019]
_cell_length_c [10.4066]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [Tm2SiNi]
_chemical_formula_sum '[Tm4 Si2 Ni2]'
_cell_volume [162.8809]
_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  2  0.0000  0.0000  0.0167  1.0
  Tm  Tm1  2  0.5000  0.0000  0.7341  1.0
  Si  Si2  2  0.0000  0.0000  0.3066  1.0
  Ni  Ni3  2  0.5000  0.0000  0.4434  1.0
]