data_NaBr2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.57
_cell_length_b   4.57
_cell_length_c   5.12
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaBr2
_chemical_formula_sum   'Na1 Br2'
_cell_volume   92.64
_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
  Br  Br0  1  0.29  0.32  0.77  1.0
  Br  Br1  1  0.0  0.64  0.35  1.0

data_NaBr2
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.57
_cell_length_b   4.57
_cell_length_c   5.12
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaBr2
_chemical_formula_sum   'Na1 Br2'
_cell_volume   92.64
_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
  Br  Br1  1  0.0  0.64  0.35  1.0
  Br  Br2  1  0.29  0.32  0.77  1.0

Na Br Br
Na Br Br 0 1 o o - 0 2 o - o 