data_LiTlCr
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.78
_cell_length_b   6.78
_cell_length_c   6.78
_cell_angle_alpha   155.82
_cell_angle_beta   155.82
_cell_angle_gamma   34.45
_symmetry_Int_Tables_number   1
_chemical_formula_structural   LiTlCr
_chemical_formula_sum   'Li1 Tl1 Cr1'
_cell_volume   52.17
_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
  Li  Li1  1  0.0  0.0  0.38  1.0
  Tl  Tl2  1  0.0  0.0  0.61  1.0
  Cr  Cr0  1  0.0  0.0  0.91  1.0

data_LiTlCr
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.01
_cell_length_b   4.01
_cell_length_c   6.78
_cell_angle_alpha   90.0
_cell_angle_beta   107.23
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   LiTlCr
_chemical_formula_sum   'Li2 Tl2 Cr2'
_cell_volume   104.34
_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
  Li  Li0  2  0.38  0.0  0.38  1.0
  Tl  Tl1  2  0.11  0.5  0.61  1.0
  Cr  Cr2  2  0.41  0.5  0.91  1.0

Li Tl Cr
LiCrTl crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two LiCrTl clusters. Li(1) is bonded in a single-bond geometry to one Tl(1) atom. The Li(1)-Tl(1) bond length is 1.61 Å. Cr(1) is bonded in a 1-coordinate geometry to one Tl(1) atom. The Cr(1)-Tl(1) bond length is 1.99 Å. Tl(1) is bonded in a distorted single-bond geometry to one Li(1) and one Cr(1) atom.