The structure described by TbTa3 is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. Tb(1) is bonded in a distorted body-centered cubic geometry to six equivalent Ta(2) and eight equivalent Ta(1) atoms. There are two inequivalent Ta sites. In the first Ta site, Ta(1) is bonded to four equivalent Tb(1) and four equivalent Ta(2) atoms to form a mixture of distorted face, edge, and corner-sharing TaTb4Ta4 tetrahedra. In the second Ta site, Ta(2) is bonded in a 14-coordinate geometry to six equivalent Tb(1) and eight equivalent Ta(1) atoms. is represented by the CIF file [CIF]
data_TbTa3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.867
_cell_length_b   4.867
_cell_length_c   4.867
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   81.543
_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
  Tb  Tb0  1  0.000  0.000  0.000  1.0
  Ta  Ta1  1  0.250  0.250  0.250  1.0
  Ta  Ta2  1  0.750  0.750  0.750  1.0
  Ta  Ta3  1  0.500  0.500  0.500  1.0
[/CIF]
.
The structure described by TbTa3 is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. Tb(1) is bonded in a distorted body-centered cubic geometry to six equivalent Ta(2) and eight equivalent Ta(1) atoms. There are two inequivalent Ta sites. In the first Ta site, Ta(1) is bonded to four equivalent Tb(1) and four equivalent Ta(2) atoms to form a mixture of distorted face, edge, and corner-sharing TaTb4Ta4 tetrahedra. In the second Ta site, Ta(2) is bonded in a 14-coordinate geometry to six equivalent Tb(1) and eight equivalent Ta(1) atoms. is represented by the CIF file [CIF]
data_TbTa3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.867
_cell_length_b   4.867
_cell_length_c   4.867
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   81.543
_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
  Tb  Tb0  1  0.000  0.000  0.000  1.0
  Ta  Ta1  1  0.250  0.250  0.250  1.0
  Ta  Ta2  1  0.750  0.750  0.750  1.0
  Ta  Ta3  1  0.500  0.500  0.500  1.0
[/CIF]
.