data_[Ta2Os4N4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ta  1.5000  1.4500  0.8200
  Os  2.2000  1.3000  0.6730
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [P4/mbm]
_cell_length_a [6.8513]
_cell_length_b [6.8513]
_cell_length_c [2.7411]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [127]
_chemical_formula_structural [Ta(OsN)2]
_chemical_formula_sum '[Ta2 Os4 N4]'
_cell_volume [128.6691]
_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  0.0000  1
  Os  Os1  4  0.1337  0.3663  0.0000  1
  N  N2  4  0.1210  0.6210  0.5000  1
]