data_NaHfTlCd
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.09
_cell_length_b   5.09
_cell_length_c   5.09
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaHfTlCd
_chemical_formula_sum   'Na1 Hf1 Tl1 Cd1'
_cell_volume   93.12
_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
  Na  Na2  1  0.0  0.0  0.0  1.0
  Hf  Hf1  1  0.6  0.6  0.6  1.0
  Tl  Tl3  1  0.8  0.8  0.8  1.0
  Cd  Cd0  1  0.4  0.4  0.4  1.0

data_NaHfTlCd
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.09
_cell_length_b   5.09
_cell_length_c   12.46
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   NaHfTlCd
_chemical_formula_sum   'Na3 Hf3 Tl3 Cd3'
_cell_volume   279.35
_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
  Na  Na0  3  0.0  0.0  0.0  1.0
  Hf  Hf1  3  0.0  0.0  0.4  1.0
  Tl  Tl2  3  0.0  0.0  0.2  1.0
  Cd  Cd3  3  0.0  0.0  0.6  1.0

Na Hf Tl Cd
NaHfCdTl crystallizes in the trigonal R3m space group. Na(1) is bonded in a 10-coordinate geometry to three equivalent Hf(1), three equivalent Cd(1), and four equivalent Tl(1) atoms. All Na(1)-Hf(1) bond lengths are 3.06 Å. All Na(1)-Cd(1) bond lengths are 3.04 Å. There is one shorter (2.51 Å) and three longer (3.37 Å) Na(1)-Tl(1) bond lengths. Hf(1) is bonded in a 2-coordinate geometry to three equivalent Na(1), four equivalent Cd(1), and one Tl(1) atom. There is one shorter (2.51 Å) and three longer (3.37 Å) Hf(1)-Cd(1) bond lengths. The Hf(1)-Tl(1) bond length is 2.51 Å. Cd(1) is bonded in a 10-coordinate geometry to three equivalent Na(1), four equivalent Hf(1), and three equivalent Tl(1) atoms. All Cd(1)-Tl(1) bond lengths are 3.06 Å. Tl(1) is bonded in a distorted linear geometry to four equivalent Na(1), one Hf(1), and three equivalent Cd(1) atoms.