data_Tl2CoRh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.69
_cell_length_b   4.69
_cell_length_c   4.69
_cell_angle_alpha   122.61
_cell_angle_beta   122.61
_cell_angle_gamma   85.54
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Tl2CoRh
_chemical_formula_sum   'Tl2 Co1 Rh1'
_cell_volume   69.77
_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
  Tl  Tl2  1  0.0  0.25  0.72  1.0
  Tl  Tl3  1  0.25  0.0  0.72  1.0
  Co  Co0  1  0.0  0.0  0.0  1.0
  Rh  Rh1  1  0.0  0.0  0.44  1.0

data_Tl2CoRh
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.37
_cell_length_b   6.37
_cell_length_c   4.69
_cell_angle_alpha   90.0
_cell_angle_beta   132.77
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Tl2CoRh
_chemical_formula_sum   'Tl4 Co2 Rh2'
_cell_volume   139.53
_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
  Tl  Tl0  4  0.4  0.13  0.53  1.0
  Co  Co1  2  0.0  0.0  0.0  1.0
  Rh  Rh2  2  0.06  0.5  0.56  1.0

Tl Tl Co Rh
Tl Tl Co Rh 0 3 o o o 0 2 o o + 1 3 o o o 1 2 o o + 2 3 o o o 
RhCoTl2 crystallizes in the monoclinic Cm space group. Rh(1) is bonded in a 3-coordinate geometry to one Co(1) and two equivalent Tl(1) atoms. The Rh(1)-Co(1) bond length is 2.07 Å. Both Rh(1)-Tl(1) bond lengths are 1.20 Å. Co(1) is bonded in a 5-coordinate geometry to one Rh(1) and four equivalent Tl(1) atoms. There are two shorter (2.18 Å) and two longer (3.01 Å) Co(1)-Tl(1) bond lengths. Tl(1) is bonded in a single-bond geometry to one Rh(1) and two equivalent Co(1) atoms.