data_SrSi2Rh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.1
_cell_length_b   4.1
_cell_length_c   4.47
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrSi2Rh
_chemical_formula_sum   'Sr1 Si2 Rh1'
_cell_volume   75.29
_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
  Sr  Sr3  1  0.0  0.0  0.0  1.0
  Si  Si1  1  0.05  0.0  0.23  1.0
  Si  Si2  1  0.0  0.05  0.23  1.0
  Rh  Rh0  1  0.05  0.05  0.0  1.0

data_SrSi2Rh
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.81
_cell_length_b   5.81
_cell_length_c   4.47
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SrSi2Rh
_chemical_formula_sum   'Sr2 Si4 Rh2'
_cell_volume   150.59
_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
  Sr  Sr0  2  0.0  0.0  0.0  1.0
  Si  Si1  4  0.03  0.03  0.23  1.0
  Rh  Rh2  2  0.05  0.0  0.0  1.0

Sr Si Si Rh
SrRhSi2 is alpha Po structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two SrRhSi2 clusters. Sr(1) is bonded in a single-bond geometry to one Rh(1) and two equivalent Si(1) atoms. The Sr(1)-Rh(1) bond length is 0.30 Å. Both Sr(1)-Si(1) bond lengths are 1.07 Å. Rh(1) is bonded in a single-bond geometry to one Sr(1) and two equivalent Si(1) atoms. Both Rh(1)-Si(1) bond lengths are 1.07 Å. Si(1) is bonded in a 3-coordinate geometry to one Sr(1), one Rh(1), and one Si(1) atom. The Si(1)-Si(1) bond length is 0.30 Å.