The crystal structure described by TbSi2 is hexagonal omega structure-like structured and crystallizes in the tetragonal I4_1/amd space group. Tb(1) is bonded to twelve equivalent Si(1) atoms to form a mixture of face and edge-sharing TbSi12 cuboctahedra. Si(1) is bonded in a 9-coordinate geometry to six equivalent Tb(1) and three equivalent Si(1) atoms. is represented by the CIF file [CIF]
data_TbSi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.988
_cell_length_b   3.987
_cell_length_c   7.763
_cell_angle_alpha   104.881
_cell_angle_beta   104.883
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   114.987
_cell_formula_units_Z   2
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
  Tb  Tb0  1  0.625  0.375  0.750  1.0
  Tb  Tb1  1  0.375  0.625  0.250  1.0
  Si  Si2  1  0.042  0.792  0.585  1.0
  Si  Si3  1  0.958  0.208  0.415  1.0
  Si  Si4  1  0.208  0.958  0.915  1.0
  Si  Si5  1  0.792  0.042  0.085  1.0
[/CIF]
.
The crystal structure described by TbSi2 is hexagonal omega structure-like structured and crystallizes in the tetragonal I4_1/amd space group. Tb(1) is bonded to twelve equivalent Si(1) atoms to form a mixture of face and edge-sharing TbSi12 cuboctahedra. Si(1) is bonded in a 9-coordinate geometry to six equivalent Tb(1) and three equivalent Si(1) atoms. is represented by the CIF file [CIF]
data_TbSi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.988
_cell_length_b   3.987
_cell_length_c   7.763
_cell_angle_alpha   104.881
_cell_angle_beta   104.883
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   114.987
_cell_formula_units_Z   2
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
  Tb  Tb0  1  0.625  0.375  0.750  1.0
  Tb  Tb1  1  0.375  0.625  0.250  1.0
  Si  Si2  1  0.042  0.792  0.585  1.0
  Si  Si3  1  0.958  0.208  0.415  1.0
  Si  Si4  1  0.208  0.958  0.915  1.0
  Si  Si5  1  0.792  0.042  0.085  1.0
[/CIF]
.