data_[Tm16Ni2Sb4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tm  1.2500  1.7500  1.0950
  Ni  1.9100  1.3500  0.7400
  Sb  2.0500  1.4500  0.8300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [18.3260]
_cell_length_b [4.4951]
_cell_length_c [7.2905]
_cell_angle_alpha [90.0000]
_cell_angle_beta [96.1129]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Tm8NiSb2]
_chemical_formula_sum '[Tm16 Ni2 Sb4]'
_cell_volume [597.1521]
_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  0.0016  0.0000  0.2222  1
  Tm  Tm1  4  0.0951  0.5000  0.5215  1
  Tm  Tm2  4  0.1401  0.5000  0.0406  1
  Tm  Tm3  4  0.2130  0.0000  0.3509  1
  Ni  Ni4  2  0.0000  0.5000  0.0000  1
  Sb  Sb5  4  0.1820  0.0000  0.7756  1
]