data_As2IrCl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.06
_cell_length_b   5.06
_cell_length_c   2.92
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   As2IrCl
_chemical_formula_sum   'As2 Ir1 Cl1'
_cell_volume   74.84
_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
  As  As0  1  0.53  0.0  0.0  1.0
  As  As1  1  0.0  0.53  0.0  1.0
  Ir  Ir3  1  0.53  0.53  0.0  1.0
  Cl  Cl2  1  0.0  0.0  0.0  1.0

data_As2IrCl
_symmetry_space_group_name_H-M   Amm2
_cell_length_a   2.92
_cell_length_b   7.16
_cell_length_c   7.16
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   38
_chemical_formula_structural   As2IrCl
_chemical_formula_sum   'As4 Ir2 Cl2'
_cell_volume   149.68
_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, y, z'
  4  'x, -y, z'
  5  'x, y+1/2, z+1/2'
  6  '-x, -y+1/2, z+1/2'
  7  '-x, y+1/2, z+1/2'
  8  'x, -y+1/2, z+1/2'
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
  As  As0  4  0.0  0.23  0.77  1.0
  Ir  Ir1  2  0.0  0.0  0.53  1.0
  Cl  Cl2  2  0.0  0.0  0.0  1.0

As As Ir Cl
IrAs2Cl crystallizes in the orthorhombic Amm2 space group. Ir(1) is bonded to two equivalent Ir(1) and four equivalent As(1) atoms to form corner-sharing IrAs4Ir2 octahedra. The corner-sharing octahedra are not tilted. Both Ir(1)-Ir(1) bond lengths are 2.92 Å. There are two shorter (2.37 Å) and two longer (2.69 Å) Ir(1)-As(1) bond lengths. As(1) is bonded in a 2-coordinate geometry to two equivalent Ir(1) and two equivalent Cl(1) atoms. There is one shorter (2.37 Å) and one longer (2.69 Å) As(1)-Cl(1) bond length. Cl(1) is bonded in a square co-planar geometry to four equivalent As(1) atoms.