data_Y2SbBr
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.77
_cell_length_b   3.77
_cell_length_c   7.53
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Y2SbBr
_chemical_formula_sum   'Y2 Sb1 Br1'
_cell_volume   107.12
_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
  Y  Y2  1  0.89  0.89  0.48  1.0
  Y  Y3  1  0.89  0.89  0.04  1.0
  Sb  Sb1  1  0.0  0.0  0.76  1.0
  Br  Br0  1  0.0  0.0  0.0  1.0

data_Y2SbBr
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.33
_cell_length_b   5.33
_cell_length_c   7.53
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Y2SbBr
_chemical_formula_sum   'Y4 Sb2 Br2'
_cell_volume   214.24
_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
  Y  Y0  2  0.39  0.5  0.04  1.0
  Y  Y1  2  0.39  0.5  0.48  1.0
  Sb  Sb2  2  0.0  0.0  0.76  1.0
  Br  Br3  2  0.0  0.0  0.0  1.0

Y Y Sb Br
Y2SbBr crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Y2SbBr clusters. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a single-bond geometry to one Sb(1) atom. The Y(1)-Sb(1) bond length is 2.19 Å. In the second Y site, Y(2) is bonded in a single-bond geometry to one Br(1) atom. The Y(2)-Br(1) bond length is 0.70 Å. Sb(1) is bonded in a distorted linear geometry to one Y(1) and one Br(1) atom. The Sb(1)-Br(1) bond length is 1.77 Å. Br(1) is bonded in a distorted single-bond geometry to one Y(2) and one Sb(1) atom.