data_TlCd2Ge
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.64
_cell_length_b   3.64
_cell_length_c   7.36
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TlCd2Ge
_chemical_formula_sum   'Tl1 Cd2 Ge1'
_cell_volume   97.53
_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  Tl3  1  0.0  0.0  0.68  1.0
  Cd  Cd0  1  0.82  0.82  0.77  1.0
  Cd  Cd1  1  0.82  0.82  0.59  1.0
  Ge  Ge2  1  0.0  0.0  0.0  1.0

data_TlCd2Ge
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.15
_cell_length_b   5.15
_cell_length_c   7.36
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   TlCd2Ge
_chemical_formula_sum   'Tl2 Cd4 Ge2'
_cell_volume   195.07
_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  2  0.0  0.0  0.68  1.0
  Cd  Cd1  2  0.32  0.5  0.59  1.0
  Cd  Cd2  2  0.32  0.5  0.77  1.0
  Ge  Ge3  2  0.0  0.0  0.0  1.0

Tl Cd Cd Ge
Cd2TlGe is alpha Niobium phosphide-derived structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Cd2TlGe clusters. There are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded in a 3-coordinate geometry to one Cd(2), one Tl(1), and one Ge(1) atom. The Cd(1)-Cd(2) bond length is 1.34 Å. The Cd(1)-Tl(1) bond length is 1.14 Å. The Cd(1)-Ge(1) bond length is 1.93 Å. In the second Cd site, Cd(2) is bonded in a 2-coordinate geometry to one Cd(1) and one Tl(1) atom. The Cd(2)-Tl(1) bond length is 1.14 Å. Tl(1) is bonded in a 2-coordinate geometry to one Cd(1) and one Cd(2) atom. Ge(1) is bonded in a distorted single-bond geometry to one Cd(1) atom.