data_SrSiBr2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.44
_cell_length_b   6.44
_cell_length_c   6.44
_cell_angle_alpha   141.39
_cell_angle_beta   132.68
_cell_angle_gamma   62.66
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrSiBr2
_chemical_formula_sum   'Sr1 Si1 Br2'
_cell_volume   121.35
_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
  Sr  Sr3  1  0.0  0.0  0.51  1.0
  Si  Si2  1  0.0  0.0  0.0  1.0
  Br  Br0  1  0.13  0.0  0.88  1.0
  Br  Br1  1  0.0  0.59  0.62  1.0

data_SrSiBr2
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.26
_cell_length_b   5.17
_cell_length_c   6.44
_cell_angle_alpha   113.66
_cell_angle_beta   109.3
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrSiBr2
_chemical_formula_sum   'Sr1 Si1 Br2'
_cell_volume   121.35
_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
  Sr  Sr0  1  0.0  0.51  0.51  1.0
  Si  Si1  1  0.0  0.0  0.0  1.0
  Br  Br2  1  0.0  0.88  0.75  1.0
  Br  Br3  1  0.41  0.03  0.03  1.0

Sr Si Br Br