data_[Ta6Cr9Si3]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ta  1.5000  1.4500  0.8200
  Cr  1.6600  1.4000  0.9400
  Si  1.9000  1.1000  0.5400
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [4.8493]
_cell_length_b [4.8493]
_cell_length_c [12.2088]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [Ta2Cr3Si]
_chemical_formula_sum '[Ta6 Cr9 Si3]'
_cell_volume [248.6314]
_cell_formula_units_Z [3]
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  6  0.0000  0.0000  0.3767  1
  Cr  Cr1  9  0.0000  0.5000  0.5000  1
  Si  Si2  3  0.0000  0.0000  0.0000  1
]