data_[Ta4Cu2Sb2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ta  1.5000  1.4500  0.8200
  Cu  1.9000  1.3500  0.8200
  Sb  2.0500  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Cmm2]
_cell_length_a [3.6404]
_cell_length_b [4.8124]
_cell_length_c [8.4248]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [35]
_chemical_formula_structural [Ta2CuSb]
_chemical_formula_sum '[Ta4 Cu2 Sb2]'
_cell_volume [147.5970]
_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
[
  Ta  Ta0  2  0.0000  0.0000  0.9932  1
  Ta  Ta1  2  0.0000  0.5000  0.7392  1
  Cu  Cu2  2  0.0000  0.0000  0.5105  1
  Sb  Sb3  2  0.0000  0.5000  0.2572  1
]