data_Th2CdRh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.21
_cell_length_b   5.21
_cell_length_c   5.21
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Th2CdRh
_chemical_formula_sum   'Th2 Cd1 Rh1'
_cell_volume   99.85
_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
  Th  Th2  1  0.84  0.84  0.84  1.0
  Th  Th3  1  0.52  0.52  0.52  1.0
  Cd  Cd0  1  0.68  0.68  0.68  1.0
  Rh  Rh1  1  0.0  0.0  0.0  1.0

data_Th2CdRh
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.21
_cell_length_b   5.21
_cell_length_c   12.76
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   Th2CdRh
_chemical_formula_sum   'Th6 Cd3 Rh3'
_cell_volume   299.54
_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
  Th  Th0  3  0.0  0.0  0.16  1.0
  Th  Th1  3  0.0  0.0  0.48  1.0
  Cd  Cd2  3  0.0  0.0  0.32  1.0
  Rh  Rh3  3  0.0  0.0  0.0  1.0

Th Th Cd Rh
Th Th Cd Rh 0 2 o o o 0 3 + + + 1 2 o o o 
Th2RhCd crystallizes in the trigonal R3m space group. There are two inequivalent Th sites. In the first Th site, Th(1) is bonded in a linear geometry to one Rh(1) and one Cd(1) atom. The Th(1)-Rh(1) bond length is 2.03 Å. The Th(1)-Cd(1) bond length is 2.03 Å. In the second Th site, Th(2) is bonded in a single-bond geometry to one Cd(1) atom. The Th(2)-Cd(1) bond length is 2.03 Å. Rh(1) is bonded in a distorted single-bond geometry to one Th(1) and three equivalent Cd(1) atoms. All Rh(1)-Cd(1) bond lengths are 3.01 Å. Cd(1) is bonded to one Th(1), one Th(2), and three equivalent Rh(1) atoms to form distorted corner-sharing CdTh2Rh3 trigonal bipyramids.