data_Sn2BiRh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.11
_cell_length_b   5.11
_cell_length_c   5.11
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sn2BiRh
_chemical_formula_sum   'Sn2 Bi1 Rh1'
_cell_volume   94.2
_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
  Sn  Sn2  1  0.81  0.81  0.81  1.0
  Sn  Sn3  1  0.61  0.61  0.61  1.0
  Bi  Bi0  1  0.42  0.42  0.42  1.0
  Rh  Rh1  1  0.0  0.0  0.0  1.0

data_Sn2BiRh
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.11
_cell_length_b   5.11
_cell_length_c   12.51
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   Sn2BiRh
_chemical_formula_sum   'Sn6 Bi3 Rh3'
_cell_volume   282.59
_cell_formula_units_Z   3
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
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
  Sn  Sn0  3  0.0  0.0  0.19  1.0
  Sn  Sn1  3  0.0  0.0  0.39  1.0
  Bi  Bi2  3  0.0  0.0  0.58  1.0
  Rh  Rh3  3  0.0  0.0  0.0  1.0

Sn Sn Bi Rh
Sn Sn Bi Rh 0 1 o o o 0 3 + + + 0 2 + o o 0 2 o + o 0 2 o o + 1 2 o o o 1 3 + + o 1 3 + o + 1 3 o + + 2 3 o o + 2 3 o + o 2 3 + o o 
RhSn2Bi crystallizes in the trigonal R3m space group. Rh(1) is bonded in a 1-coordinate geometry to one Sn(1), three equivalent Sn(2), and three equivalent Bi(1) atoms. The Rh(1)-Sn(1) bond length is 2.43 Å. All Rh(1)-Sn(2) bond lengths are 3.03 Å. All Rh(1)-Bi(1) bond lengths are 3.13 Å. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 1-coordinate geometry to one Rh(1), one Sn(2), and three equivalent Bi(1) atoms. The Sn(1)-Sn(2) bond length is 2.43 Å. All Sn(1)-Bi(1) bond lengths are 3.03 Å. In the second Sn site, Sn(2) is bonded in a 5-coordinate geometry to three equivalent Rh(1), one Sn(1), and one Bi(1) atom. The Sn(2)-Bi(1) bond length is 2.43 Å. Bi(1) is bonded in a 7-coordinate geometry to three equivalent Rh(1), one Sn(2), and three equivalent Sn(1) atoms.