data_Tl2CrGe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.15
_cell_length_b   5.15
_cell_length_c   3.16
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Tl2CrGe
_chemical_formula_sum   'Tl2 Cr1 Ge1'
_cell_volume   83.69
_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  0.57  0.0  0.58  1.0
  Tl  Tl3  1  0.0  0.57  0.58  1.0
  Cr  Cr0  1  0.0  0.0  0.0  1.0
  Ge  Ge1  1  0.57  0.57  0.0  1.0

data_Tl2CrGe
_symmetry_space_group_name_H-M   Cm
_cell_length_a   7.28
_cell_length_b   7.28
_cell_length_c   3.16
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Tl2CrGe
_chemical_formula_sum   'Tl4 Cr2 Ge2'
_cell_volume   167.38
_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  0.29  0.29  0.58  1.0
  Cr  Cr1  2  0.0  0.0  0.0  1.0
  Ge  Ge2  2  0.07  0.5  0.0  1.0

Tl Tl Cr Ge
CrTl2Ge crystallizes in the monoclinic Cm space group. Cr(1) is bonded in a 11-coordinate geometry to two equivalent Cr(1), eight equivalent Tl(1), and one Ge(1) atom. Both Cr(1)-Cr(1) bond lengths are 3.16 Å. There are a spread of Cr(1)-Tl(1) bond distances ranging from 2.56-3.48 Å. The Cr(1)-Ge(1) bond length is 3.10 Å. Tl(1) is bonded in a 1-coordinate geometry to four equivalent Cr(1) and three equivalent Ge(1) atoms. There are a spread of Tl(1)-Ge(1) bond distances ranging from 2.56-3.24 Å. Ge(1) is bonded in a 6-coordinate geometry to one Cr(1) and six equivalent Tl(1) atoms.