data_[Nb4Sn2C2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nb  1.6000  1.4500  0.8200
  Sn  1.9600  1.4500  0.8300
  C  2.5500  0.7000  0.3000
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [5.6513]
_cell_length_b [3.2002]
_cell_length_c [7.6412]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.7983]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Nb2SnC]
_chemical_formula_sum '[Nb4 Sn2 C2]'
_cell_volume [130.8190]
_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
[
  Nb  Nb0  4  0.2390  0.5000  0.6623  1.0
  Sn  Sn1  2  0.0000  0.5000  0.0000  1.0
  C  C2  2  0.0000  0.0000  0.5000  1.0
]