data_SrSiRh2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.05
_cell_length_b   3.05
_cell_length_c   7.41
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrSiRh2
_chemical_formula_sum   'Sr1 Si1 Rh2'
_cell_volume   68.85
_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  0.7  1.0
  Si  Si2  1  0.0  0.0  0.0  1.0
  Rh  Rh0  1  0.52  0.52  0.04  1.0
  Rh  Rh1  1  0.52  0.52  0.37  1.0

data_SrSiRh2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.31
_cell_length_b   4.31
_cell_length_c   7.41
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SrSiRh2
_chemical_formula_sum   'Sr2 Si2 Rh4'
_cell_volume   137.7
_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  0.7  1.0
  Si  Si1  2  0.0  0.0  0.0  1.0
  Rh  Rh2  2  0.02  0.5  0.04  1.0
  Rh  Rh3  2  0.02  0.5  0.37  1.0

Sr Si Rh Rh
SrRh2Si crystallizes in the monoclinic Cm space group. Sr(1) is bonded in a distorted single-bond geometry to four equivalent Rh(2) and one Si(1) atom. There are a spread of Sr(1)-Rh(2) bond distances ranging from 3.23-3.37 Å. The Sr(1)-Si(1) bond length is 2.20 Å. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 4-coordinate geometry to one Rh(2) and four equivalent Si(1) atoms. The Rh(1)-Rh(2) bond length is 2.40 Å. There are a spread of Rh(1)-Si(1) bond distances ranging from 2.07-2.28 Å. In the second Rh site, Rh(2) is bonded in a 9-coordinate geometry to four equivalent Sr(1), one Rh(1), and four equivalent Rh(2) atoms. All Rh(2)-Rh(2) bond lengths are 3.05 Å. Si(1) is bonded to one Sr(1) and four equivalent Rh(1) atoms to form a mixture of corner and edge-sharing SiSrRh4 square pyramids.