[CIF]
data_Na2TaNb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.66408279
_cell_length_b   4.85594706
_cell_length_c   6.94820108
_cell_angle_alpha   90.00000000
_cell_angle_beta   99.63648958
_cell_angle_gamma   90.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2TaNb
_chemical_formula_sum   'Na2 Ta1 Nb1'
_cell_volume   88.61808018
_cell_formula_units_Z   1
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
  Na  Na0  1  0.02436323  0.00000000  0.02352728  1
  Na  Na1  1  1.02636582  2.42797353  1.68095958  1
  Nb  Nb2  1  1.95430072  0.00000000  3.79060358  1
  Ta  Ta3  1  0.57847735  2.42797353  4.78014863  1
[/CIF]
