data_MgTa2Tl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.06
_cell_length_b   4.06
_cell_length_c   4.7
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgTa2Tl
_chemical_formula_sum   'Mg1 Ta2 Tl1'
_cell_volume   77.59
_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
  Mg  Mg0  1  0.0  0.0  0.0  1.0
  Ta  Ta1  1  0.0  0.03  0.35  1.0
  Ta  Ta2  1  0.03  0.0  0.35  1.0
  Tl  Tl3  1  0.03  0.03  0.0  1.0

data_MgTa2Tl
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.74
_cell_length_b   5.74
_cell_length_c   4.7
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   MgTa2Tl
_chemical_formula_sum   'Mg2 Ta4 Tl2'
_cell_volume   155.18
_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
  Mg  Mg0  2  0.0  0.0  0.0  1.0
  Ta  Ta1  4  0.02  0.02  0.35  1.0
  Tl  Tl2  2  0.03  0.0  0.0  1.0

Mg Ta Ta Tl
Mg Ta Ta Tl 0 3 o o o 1 2 o o o 
MgTl(Ta)2 is alpha carbon monoxide-derived structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two 62648-39-9 molecules and two tantalum molecules.