data_NbTl4Cd
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.23
_cell_length_b   6.23
_cell_length_c   6.23
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NbTl4Cd
_chemical_formula_sum   'Nb1 Tl4 Cd1'
_cell_volume   171.21
_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
  Nb  Nb1  1  0.0  0.0  0.0  1.0
  Tl  Tl2  1  0.51  0.51  0.3  1.0
  Tl  Tl3  1  0.51  0.3  0.51  1.0
  Tl  Tl4  1  0.3  0.51  0.51  1.0
  Tl  Tl5  1  0.3  0.3  0.3  1.0
  Cd  Cd0  1  0.61  0.61  0.61  1.0

data_NbTl4Cd
_symmetry_space_group_name_H-M   R3m
_cell_length_a   6.23
_cell_length_b   6.23
_cell_length_c   15.27
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   NbTl4Cd
_chemical_formula_sum   'Nb3 Tl12 Cd3'
_cell_volume   513.63
_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
  Nb  Nb0  3  0.0  0.0  0.0  1.0
  Tl  Tl1  9  0.14  0.07  0.56  1.0
  Tl  Tl2  3  0.0  0.0  0.7  1.0
  Cd  Cd3  3  0.0  0.0  0.39  1.0

Nb Tl Tl Tl Tl Cd
NbCdTl4 crystallizes in the trigonal R3m space group. Nb(1) is bonded to three equivalent Cd(1), three equivalent Tl(2), and six equivalent Tl(1) atoms to form distorted face-sharing NbTl9Cd3 cuboctahedra. All Nb(1)-Cd(1) bond lengths are 3.70 Å. All Nb(1)-Tl(2) bond lengths are 3.63 Å. All Nb(1)-Tl(1) bond lengths are 3.68 Å. Cd(1) is bonded in a 9-coordinate geometry to three equivalent Nb(1), three equivalent Tl(1), and three equivalent Tl(2) atoms. All Cd(1)-Tl(1) bond lengths are 2.69 Å. All Cd(1)-Tl(2) bond lengths are 3.62 Å. There are two inequivalent Tl sites. In the first Tl site, Tl(1) is bonded in a 2-coordinate geometry to two equivalent Nb(1), one Cd(1), one Tl(2), and two equivalent Tl(1) atoms. The Tl(1)-Tl(2) bond length is 2.23 Å. Both Tl(1)-Tl(1) bond lengths are 1.29 Å. In the second Tl site, Tl(2) is bonded in a 9-coordinate geometry to three equivalent Nb(1), three equivalent Cd(1), and three equivalent Tl(1) atoms.