data_[Ta2Tc2Ni2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ta  1.5000  1.4500  0.8200
  Tc  1.9000  1.3500  0.7417
  Ni  1.9100  1.3500  0.7400
]
_symmetry_space_group_name_H-M [I4mm]
_cell_length_a [2.6988]
_cell_length_b [2.6988]
_cell_length_c [11.9742]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [107]
_chemical_formula_structural [TaTcNi]
_chemical_formula_sum '[Ta2 Tc2 Ni2]'
_cell_volume [87.2159]
_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  0.3421  1
  Tc  Tc1  2  0.0000  0.0000  0.6527  1
  Ni  Ni2  2  0.0000  0.0000  0.0052  1
]