data_MgTlOs2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.82
_cell_length_b   4.82
_cell_length_c   4.82
_cell_angle_alpha   128.19
_cell_angle_beta   128.19
_cell_angle_gamma   76.33
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgTlOs2
_chemical_formula_sum   'Mg1 Tl1 Os2'
_cell_volume   67.07
_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
  Tl  Tl3  1  0.0  0.1  0.89  1.0
  Os  Os1  1  0.1  0.0  0.89  1.0
  Os  Os2  1  0.0  0.0  0.79  1.0

data_MgTlOs2
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.21
_cell_length_b   4.21
_cell_length_c   4.82
_cell_angle_alpha   115.91
_cell_angle_beta   115.91
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgTlOs2
_chemical_formula_sum   'Mg1 Tl1 Os2'
_cell_volume   67.07
_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
  Tl  Tl1  1  0.21  0.1  0.21  1.0
  Os  Os2  1  0.11  0.0  0.21  1.0
  Os  Os3  1  0.21  0.0  0.21  1.0

Mg Tl Os Os
MgOs2Tl is Copper structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one MgOs2Tl cluster. Mg(1) is bonded in a 2-coordinate geometry to one Os(1) and one Tl(1) atom. The Mg(1)-Os(1) bond length is 0.91 Å. The Mg(1)-Tl(1) bond length is 0.91 Å. There are two inequivalent Os sites. In the first Os site, Os(1) is bonded in a distorted T-shaped geometry to one Mg(1), one Os(2), and one Tl(1) atom. The Os(1)-Os(2) bond length is 0.44 Å. The Os(1)-Tl(1) bond length is 0.62 Å. In the second Os site, Os(2) is bonded in a distorted single-bond geometry to one Os(1) and one Tl(1) atom. The Os(2)-Tl(1) bond length is 0.44 Å. Tl(1) is bonded in a distorted single-bond geometry to one Mg(1), one Os(1), and one Os(2) atom.