The structure described by Th(AuSi)2 crystallizes in the tetragonal I4/mmm space group. Th(1) is bonded in a 16-coordinate geometry to eight equivalent Au(1) and eight equivalent Si(1) atoms. Au(1) is bonded to four equivalent Th(1) and four equivalent Si(1) atoms to form a mixture of distorted face, corner, and edge-sharing AuTh4Si4 tetrahedra. Si(1) is bonded in a 9-coordinate geometry to four equivalent Th(1), four equivalent Au(1), and one Si(1) atom. is represented by the CIF card [CIF]
data_Th(SiAu)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.362
_cell_length_b   4.362
_cell_length_c   5.905
_cell_angle_alpha   111.673
_cell_angle_beta   111.673
_cell_angle_gamma   90.005
_symmetry_Int_Tables_number   1
_cell_volume   95.803
_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
  Th  Th0  1  0.000  0.000  0.000  1.0
  Si  Si1  1  0.615  0.615  0.229  1.0
  Si  Si2  1  0.385  0.385  0.771  1.0
  Au  Au3  1  0.750  0.250  0.500  1.0
  Au  Au4  1  0.250  0.750  0.500  1.0
[/CIF]
.
The structure described by Th(AuSi)2 crystallizes in the tetragonal I4/mmm space group. Th(1) is bonded in a 16-coordinate geometry to eight equivalent Au(1) and eight equivalent Si(1) atoms. Au(1) is bonded to four equivalent Th(1) and four equivalent Si(1) atoms to form a mixture of distorted face, corner, and edge-sharing AuTh4Si4 tetrahedra. Si(1) is bonded in a 9-coordinate geometry to four equivalent Th(1), four equivalent Au(1), and one Si(1) atom. is represented by the CIF card [CIF]
data_Th(SiAu)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.362
_cell_length_b   4.362
_cell_length_c   5.905
_cell_angle_alpha   111.673
_cell_angle_beta   111.673
_cell_angle_gamma   90.005
_symmetry_Int_Tables_number   1
_cell_volume   95.803
_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
  Th  Th0  1  0.000  0.000  0.000  1.0
  Si  Si1  1  0.615  0.615  0.229  1.0
  Si  Si2  1  0.385  0.385  0.771  1.0
  Au  Au3  1  0.750  0.250  0.500  1.0
  Au  Au4  1  0.250  0.750  0.500  1.0
[/CIF]
.