data_GaAsBr2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.69
_cell_length_b   3.69
_cell_length_c   9.01
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   121.41
_symmetry_Int_Tables_number   1
_chemical_formula_structural   GaAsBr2
_chemical_formula_sum   'Ga1 As1 Br2'
_cell_volume   104.71
_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
  Ga  Ga3  1  0.0  0.0  0.0  1.0
  As  As0  1  0.0  0.0  0.51  1.0
  Br  Br1  1  0.81  0.0  0.6  1.0
  Br  Br2  1  0.81  0.0  0.41  1.0

data_GaAsBr2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.69
_cell_length_b   6.3
_cell_length_c   9.01
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   GaAsBr2
_chemical_formula_sum   'Ga2 As2 Br4'
_cell_volume   209.49
_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
  Ga  Ga0  2  0.0  0.0  0.0  1.0
  As  As1  2  0.0  0.0  0.49  1.0
  Br  Br2  2  0.19  0.0  0.4  1.0
  Br  Br3  2  0.19  0.0  0.59  1.0

Ga As Br Br