data_Si2RhCl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.62
_cell_length_b   5.62
_cell_length_c   5.62
_cell_angle_alpha   150.71
_cell_angle_beta   131.83
_cell_angle_gamma   57.38
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Si2RhCl
_chemical_formula_sum   'Si2 Rh1 Cl1'
_cell_volume   64.31
_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
  Si  Si2  1  0.0  0.0  0.61  1.0
  Si  Si3  1  0.42  0.0  0.13  1.0
  Rh  Rh1  1  0.0  0.29  0.77  1.0
  Cl  Cl0  1  0.0  0.0  0.21  1.0

data_Si2RhCl
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.84
_cell_length_b   4.59
_cell_length_c   5.62
_cell_angle_alpha   114.09
_cell_angle_beta   104.65
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Si2RhCl
_chemical_formula_sum   'Si2 Rh1 Cl1'
_cell_volume   64.31
_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
  Si  Si0  1  0.0  0.13  0.71  1.0
  Si  Si1  1  0.0  0.61  0.61  1.0
  Rh  Rh2  1  0.71  0.47  0.47  1.0
  Cl  Cl3  1  0.0  0.21  0.21  1.0

Si Si Rh Cl
Si Si Rh Cl 0 2 o o o 0 1 o o + 0 1 - o o 0 3 o o o 1 2 o o - 1 2 + o o 1 1 o + + 1 3 o o o 2 3 o o o 2 3 o + + 
RhSi2Cl crystallizes in the triclinic P1 space group. Rh(1) is bonded in a 1-coordinate geometry to one Si(1), one Si(2), and two equivalent Cl(1) atoms. The Rh(1)-Si(1) bond length is 0.99 Å. The Rh(1)-Si(2) bond length is 2.46 Å. There is one shorter (1.85 Å) and one longer (2.16 Å) Rh(1)-Cl(1) bond length. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a single-bond geometry to one Rh(1) and one Si(2) atom. The Si(1)-Si(2) bond length is 2.22 Å. In the second Si site, Si(2) is bonded in a 3-coordinate geometry to one Rh(1), one Si(1), and one Cl(1) atom. The Si(2)-Cl(1) bond length is 2.69 Å. Cl(1) is bonded in a 3-coordinate geometry to two equivalent Rh(1) and one Si(2) atom.