data_NaNbCr2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.63
_cell_length_b   4.49
_cell_length_c   6.34
_cell_angle_alpha   90.0
_cell_angle_beta   100.49
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaNbCr2
_chemical_formula_sum   'Na1 Nb1 Cr2'
_cell_volume   73.65
_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  Na2  1  0.0  0.0  0.0  1.0
  Nb  Nb3  1  0.74  0.0  0.12  1.0
  Cr  Cr0  1  0.74  0.25  0.1  1.0
  Cr  Cr1  1  0.74  0.25  0.14  1.0

data_NaNbCr2
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.63
_cell_length_b   4.49
_cell_length_c   6.34
_cell_angle_alpha   90.0
_cell_angle_beta   100.49
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaNbCr2
_chemical_formula_sum   'Na1 Nb1 Cr2'
_cell_volume   73.65
_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  0.0  0.0  0.0  1.0
  Nb  Nb1  1  0.74  0.0  0.12  1.0
  Cr  Cr2  1  0.74  0.25  0.14  1.0
  Cr  Cr3  1  0.74  0.25  0.1  1.0

Na Nb Cr Cr
Na Nb Cr Cr 0 1 - o o 1 3 o o o 1 2 o o o 2 3 o o o 