data_Sr(BiO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.37
_cell_length_b   5.98
_cell_length_c   26.64
_cell_angle_alpha   97.45
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr(BiO2)2
_chemical_formula_sum   'Sr2 Bi4 O8'
_cell_volume   690.41
_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
  Sr  Sr0  1  0.25  0.85  0.11  1.0
  Sr  Sr1  1  0.75  0.4  0.14  1.0
  Bi  Bi2  1  0.25  0.5  0.25  1.0
  Bi  Bi3  1  0.75  0.01  0.23  1.0
  Bi  Bi4  1  0.75  0.75  0.99  1.0
  Bi  Bi5  1  0.25  0.24  0.02  1.0
  O  O6  1  0.75  0.99  0.15  1.0
  O  O7  1  0.25  0.61  0.18  1.0
  O  O8  1  0.25  0.25  0.09  1.0
  O  O9  1  0.75  0.64  0.07  1.0
  O  O10  1  0.75  0.39  0.24  1.0
  O  O11  1  0.25  0.13  0.24  1.0
  O  O12  1  0.25  0.86  0.01  1.0
  O  O13  1  0.75  0.11  0.01  1.0

Sr Sr Bi Bi Bi Bi O O O O O O O O 0 9 - o o 0 9 o o o 0 7 o o o 0 8 o + o 0 6 - o o 0 6 o o o 0 12 o o o 1 8 o o o 1 8 + o o 1 10 o o o 1 7 o o o 1 7 + o o 1 6 o - o 1 9 o o o 2 10 - o o 2 10 o o o 2 7 o o o 2 11 o o o 3 6 o - o 3 10 o o o 3 11 o o o 3 11 + o o 4 13 o + + 4 12 o o + 4 12 + o + 4 9 o o + 5 13 - o o 5 13 o o o 5 12 o - o 5 8 o o o 10 11 o o o 10 11 + o o 12 13 - + o 12 13 o + o 
data_Sr(BiO2)2
_symmetry_space_group_name_H-M   P2_1/m
_cell_length_a   5.98
_cell_length_b   4.37
_cell_length_c   26.54
_cell_angle_alpha   90.0
_cell_angle_beta   95.47
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   11
_chemical_formula_structural   Sr(BiO2)2
_chemical_formula_sum   'Sr2 Bi4 O8'
_cell_volume   690.41
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-x, -y, -z'
  3  '-x, y+1/2, -z'
  4  'x, -y+1/2, 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
  Sr  Sr0  2  0.26  0.25  0.99  1.0
  Bi  Bi1  2  0.22  0.75  0.11  1.0
  Bi  Bi2  2  0.24  0.75  0.87  1.0
  O  O3  2  0.1  0.25  0.11  1.0
  O  O4  2  0.15  0.25  0.88  1.0
  O  O5  2  0.16  0.75  0.03  1.0
  O  O6  2  0.42  0.75  0.94  1.0
