data_RuBr2Cl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.97
_cell_length_b   4.97
_cell_length_c   4.97
_cell_angle_alpha   121.06
_cell_angle_beta   121.06
_cell_angle_gamma   88.18
_symmetry_Int_Tables_number   1
_chemical_formula_structural   RuBr2Cl
_chemical_formula_sum   'Ru1 Br2 Cl1'
_cell_volume   85.25
_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
  Ru  Ru3  1  0.0  0.0  0.57  1.0
  Br  Br0  1  0.0  0.44  0.78  1.0
  Br  Br1  1  0.44  0.0  0.78  1.0
  Cl  Cl2  1  0.0  0.0  0.0  1.0

data_RuBr2Cl
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.91
_cell_length_b   6.91
_cell_length_c   4.97
_cell_angle_alpha   90.0
_cell_angle_beta   134.09
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   RuBr2Cl
_chemical_formula_sum   'Ru2 Br4 Cl2'
_cell_volume   170.5
_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
  Ru  Ru0  2  0.0  0.0  0.57  1.0
  Br  Br1  4  0.28  0.28  0.34  1.0
  Cl  Cl2  2  0.0  0.0  0.0  1.0

Ru Br Br Cl
RuBr2Cl crystallizes in the monoclinic Cm space group. Ru(1) is bonded in a distorted see-saw-like geometry to two equivalent Br(1) and two equivalent Cl(1) atoms. Both Ru(1)-Br(1) bond lengths are 1.89 Å. There is one shorter (2.15 Å) and one longer (2.82 Å) Ru(1)-Cl(1) bond length. Br(1) is bonded in a distorted single-bond geometry to one Ru(1) and one Cl(1) atom. The Br(1)-Cl(1) bond length is 2.39 Å. Cl(1) is bonded in a 4-coordinate geometry to two equivalent Ru(1) and two equivalent Br(1) atoms.