data_BaAs2Cl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.73
_cell_length_b   3.73
_cell_length_c   8.23
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BaAs2Cl
_chemical_formula_sum   'Ba1 As2 Cl1'
_cell_volume   114.58
_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
  Ba  Ba2  1  0.87  0.87  0.14  1.0
  As  As0  1  0.87  0.87  0.78  1.0
  As  As1  1  0.0  0.0  0.67  1.0
  Cl  Cl3  1  0.0  0.0  0.75  1.0

data_BaAs2Cl
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.28
_cell_length_b   5.28
_cell_length_c   8.23
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   BaAs2Cl
_chemical_formula_sum   'Ba2 As4 Cl2'
_cell_volume   229.17
_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
  Ba  Ba0  2  0.37  0.5  0.14  1.0
  As  As1  2  0.0  0.0  0.67  1.0
  As  As2  2  0.37  0.5  0.78  1.0
  Cl  Cl3  2  0.0  0.0  0.75  1.0

Ba As As Cl
BaAs2Cl crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two BaAs2Cl clusters. Ba(1) is bonded in a distorted single-bond geometry to one As(1) atom. The Ba(1)-As(1) bond length is 2.98 Å. There are two inequivalent As sites. In the first As site, As(1) is bonded in a single-bond geometry to one Ba(1) and one Cl(1) atom. The As(1)-Cl(1) bond length is 0.73 Å. In the second As site, As(2) is bonded in a single-bond geometry to one Cl(1) atom. The As(2)-Cl(1) bond length is 0.66 Å. Cl(1) is bonded in a water-like geometry to one As(1) and one As(2) atom.