data_NiO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.78
_cell_length_b   4.78
_cell_length_c   3.73
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NiO3
_chemical_formula_sum   'Ni2 O6'
_cell_volume   73.68
_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
  Ni  Ni0  1  0.39  0.38  0.8  1.0
  Ni  Ni1  1  0.0  0.76  0.93  1.0
  O  O2  1  0.0  0.51  0.8  1.0
  O  O3  1  0.92  0.38  0.8  1.0
  O  O4  1  0.08  0.38  0.8  1.0
  O  O5  1  0.31  0.76  0.93  1.0
  O  O6  1  0.47  0.76  0.93  1.0
  O  O7  1  0.39  0.62  0.93  1.0

data_NiO3
_symmetry_space_group_name_H-M   P-1
_cell_length_a   3.73
_cell_length_b   4.78
_cell_length_c   4.78
_cell_angle_alpha   120.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   NiO3
_chemical_formula_sum   'Ni2 O6'
_cell_volume   73.68
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-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
  Ni  Ni0  2  0.43  0.19  0.31  1.0
  O  O1  2  0.43  0.73  0.31  1.0
  O  O2  2  0.43  0.81  0.44  1.0
  O  O3  2  0.43  0.88  0.31  1.0

Ni Ni O O O O O O