data_[Tl2Cr2N2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tl  1.6200  1.9000  1.3325
  Cr  1.6600  1.4000  0.9400
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [Pma2]
_cell_length_a [9.7359]
_cell_length_b [3.1245]
_cell_length_c [16.7198]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [28]
_chemical_formula_structural [TlCrN]
_chemical_formula_sum '[Tl2 Cr2 N2]'
_cell_volume [508.6135]
_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
[
  Tl  Tl0  2  0.0000  0.0000  0.5528  1
  Cr  Cr1  2  0.2500  0.4039  0.4972  1
  N  N2  2  0.2500  0.9060  0.4500  1
]