The compound described by Pu3Ta is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Pu(1) is bonded to eight equivalent Pu(1) and four equivalent Ta(1) atoms to form PuPu8Ta4 cuboctahedra that share corners with twelve equivalent Pu(1)Pu8Ta4 cuboctahedra, edges with eight equivalent Ta(1)Pu12 cuboctahedra, edges with sixteen equivalent Pu(1)Pu8Ta4 cuboctahedra, faces with four equivalent Ta(1)Pu12 cuboctahedra, and faces with fourteen equivalent Pu(1)Pu8Ta4 cuboctahedra. Ta(1) is bonded to twelve equivalent Pu(1) atoms to form TaPu12 cuboctahedra that share corners with twelve equivalent Ta(1)Pu12 cuboctahedra, edges with twenty-four equivalent Pu(1)Pu8Ta4 cuboctahedra, faces with six equivalent Ta(1)Pu12 cuboctahedra, and faces with twelve equivalent Pu(1)Pu8Ta4 cuboctahedra. is represented by the CIF file [CIF]
data_Pu3Ta
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.199
_cell_length_b   4.199
_cell_length_c   4.199
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   74.057
_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
  Pu  Pu0  1  0.000  0.500  0.500  1.0
  Pu  Pu1  1  0.500  0.000  0.500  1.0
  Pu  Pu2  1  0.500  0.500  0.000  1.0
  Ta  Ta3  1  0.000  0.000  0.000  1.0
[/CIF]
.
The compound described by Pu3Ta is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Pu(1) is bonded to eight equivalent Pu(1) and four equivalent Ta(1) atoms to form PuPu8Ta4 cuboctahedra that share corners with twelve equivalent Pu(1)Pu8Ta4 cuboctahedra, edges with eight equivalent Ta(1)Pu12 cuboctahedra, edges with sixteen equivalent Pu(1)Pu8Ta4 cuboctahedra, faces with four equivalent Ta(1)Pu12 cuboctahedra, and faces with fourteen equivalent Pu(1)Pu8Ta4 cuboctahedra. Ta(1) is bonded to twelve equivalent Pu(1) atoms to form TaPu12 cuboctahedra that share corners with twelve equivalent Ta(1)Pu12 cuboctahedra, edges with twenty-four equivalent Pu(1)Pu8Ta4 cuboctahedra, faces with six equivalent Ta(1)Pu12 cuboctahedra, and faces with twelve equivalent Pu(1)Pu8Ta4 cuboctahedra. is represented by the CIF file [CIF]
data_Pu3Ta
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.199
_cell_length_b   4.199
_cell_length_c   4.199
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   74.057
_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
  Pu  Pu0  1  0.000  0.500  0.500  1.0
  Pu  Pu1  1  0.500  0.000  0.500  1.0
  Pu  Pu2  1  0.500  0.500  0.000  1.0
  Ta  Ta3  1  0.000  0.000  0.000  1.0
[/CIF]
.