data_KSr2Br
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   12.47
_cell_length_b   12.47
_cell_length_c   12.47
_cell_angle_alpha   19.75
_cell_angle_beta   19.75
_cell_angle_gamma   19.75
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KSr2Br
_chemical_formula_sum   'K1 Sr2 Br1'
_cell_volume   193.68
_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
  K  K1  1  0.0  0.0  0.0  1.0
  Sr  Sr2  1  0.0  0.0  0.47  1.0
  Sr  Sr3  1  0.0  0.0  0.2  1.0
  Br  Br0  1  0.0  0.0  0.34  1.0

data_KSr2Br
_symmetry_space_group_name_H-M   Cm
_cell_length_a   7.41
_cell_length_b   4.28
_cell_length_c   12.47
_cell_angle_alpha   90.0
_cell_angle_beta   101.42
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   KSr2Br
_chemical_formula_sum   'K2 Sr4 Br2'
_cell_volume   387.35
_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+1/2, y+1/2, z'
  4  'x+1/2, -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
  K  K0  2  0.0  0.0  0.0  1.0
  Sr  Sr1  2  0.0  0.0  0.8  1.0
  Sr  Sr2  2  0.0  0.0  0.53  1.0
  Br  Br3  2  0.0  0.0  0.66  1.0

K Sr Sr Br