data_NaNbZn2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.73
_cell_length_b   4.05
_cell_length_c   6.79
_cell_angle_alpha   90.0
_cell_angle_beta   91.36
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaNbZn2
_chemical_formula_sum   'Na1 Nb1 Zn2'
_cell_volume   75.11
_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  0.92  0.0  0.39  1.0
  Zn  Zn2  1  0.29  0.03  0.79  1.0
  Zn  Zn3  1  0.29  0.03  0.99  1.0

data_NaNbZn2
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.73
_cell_length_b   4.05
_cell_length_c   6.79
_cell_angle_alpha   90.0
_cell_angle_beta   91.36
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaNbZn2
_chemical_formula_sum   'Na1 Nb1 Zn2'
_cell_volume   75.11
_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  0.92  0.0  0.39  1.0
  Zn  Zn2  1  0.29  0.03  0.99  1.0
  Zn  Zn3  1  0.29  0.03  0.79  1.0

Na Nb Zn Zn