The structure described by PuCo3 crystallizes in the trigonal R-3m space group. There are two inequivalent Pu sites. In the first Pu site, Pu(1) is bonded in a distorted hexagonal planar geometry to six equivalent Co(2) and twelve equivalent Co(3) atoms. In the second Pu site, Pu(2) is bonded in a 12-coordinate geometry to three equivalent Co(1) and nine equivalent Co(3) atoms. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded to six equivalent Pu(2) and six equivalent Co(3) atoms to form CoPu6Co6 cuboctahedra that share corners with six equivalent Co(2)Pu3Co9 cuboctahedra, corners with twelve equivalent Co(3)Pu5Co7 cuboctahedra, edges with six equivalent Co(1)Pu6Co6 cuboctahedra, faces with two equivalent Co(2)Pu3Co9 cuboctahedra, and faces with eighteen equivalent Co(3)Pu5Co7 cuboctahedra. In the second Co site, Co(2) is bonded to three equivalent Pu(1), three equivalent Co(2), and six equivalent Co(3) atoms to form distorted CoPu3Co9 cuboctahedra that share corners with three equivalent Co(2)Pu3Co9 cuboctahedra, corners with three equivalent Co(1)Pu6Co6 cuboctahedra, corners with twelve equivalent Co(3)Pu5Co7 cuboctahedra, edges with six equivalent Co(2)Pu3Co9 cuboctahedra,  a faceface with one Co(1)Pu6Co6 cuboctahedra, faces with three equivalent Co(2)Pu3Co9 cuboctahedra, and faces with eighteen equivalent Co(3)Pu5Co7 cuboctahedra. In the third Co site, Co(3) is bonded to two equivalent Pu(1), three equivalent Pu(2), one Co(1), two equivalent Co(2), and four equivalent Co(3) atoms to form CoPu5Co7 cuboctahedra that share corners with two equivalent Co(1)Pu6Co6 cuboctahedra, corners with four equivalent Co(2)Pu3Co9 cuboctahedra, corners with fifteen equivalent Co(3)Pu5Co7 cuboctahedra, edges with eight equivalent Co(3)Pu5Co7 cuboctahedra, faces with three equivalent Co(1)Pu6Co6 cuboctahedra, faces with six equivalent Co(2)Pu3Co9 cuboctahedra, and faces with eleven equivalent Co(3)Pu5Co7 cuboctahedra. is represented by the CIF file [CIF]
data_PuCo3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.562
_cell_length_b   8.562
_cell_length_c   8.562
_cell_angle_alpha   32.239
_cell_angle_beta   32.239
_cell_angle_gamma   32.239
_symmetry_Int_Tables_number   1
_cell_volume   158.755
_cell_formula_units_Z   3
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  0.000  0.000  1.0
  Pu  Pu1  1  0.146  0.146  0.146  1.0
  Pu  Pu2  1  0.854  0.854  0.854  1.0
  Co  Co3  1  0.500  0.500  0.500  1.0
  Co  Co4  1  0.333  0.333  0.333  1.0
  Co  Co5  1  0.667  0.667  0.667  1.0
  Co  Co6  1  0.085  0.582  0.582  1.0
  Co  Co7  1  0.582  0.582  0.085  1.0
  Co  Co8  1  0.582  0.085  0.582  1.0
  Co  Co9  1  0.418  0.915  0.418  1.0
  Co  Co10  1  0.915  0.418  0.418  1.0
  Co  Co11  1  0.418  0.418  0.915  1.0
[/CIF]
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The structure described by PuCo3 crystallizes in the trigonal R-3m space group. There are two inequivalent Pu sites. In the first Pu site, Pu(1) is bonded in a distorted hexagonal planar geometry to six equivalent Co(2) and twelve equivalent Co(3) atoms. In the second Pu site, Pu(2) is bonded in a 12-coordinate geometry to three equivalent Co(1) and nine equivalent Co(3) atoms. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded to six equivalent Pu(2) and six equivalent Co(3) atoms to form CoPu6Co6 cuboctahedra that share corners with six equivalent Co(2)Pu3Co9 cuboctahedra, corners with twelve equivalent Co(3)Pu5Co7 cuboctahedra, edges with six equivalent Co(1)Pu6Co6 cuboctahedra, faces with two equivalent Co(2)Pu3Co9 cuboctahedra, and faces with eighteen equivalent Co(3)Pu5Co7 cuboctahedra. In the second Co site, Co(2) is bonded to three equivalent Pu(1), three equivalent Co(2), and six equivalent Co(3) atoms to form distorted CoPu3Co9 cuboctahedra that share corners with three equivalent Co(2)Pu3Co9 cuboctahedra, corners with three equivalent Co(1)Pu6Co6 cuboctahedra, corners with twelve equivalent Co(3)Pu5Co7 cuboctahedra, edges with six equivalent Co(2)Pu3Co9 cuboctahedra,  a faceface with one Co(1)Pu6Co6 cuboctahedra, faces with three equivalent Co(2)Pu3Co9 cuboctahedra, and faces with eighteen equivalent Co(3)Pu5Co7 cuboctahedra. In the third Co site, Co(3) is bonded to two equivalent Pu(1), three equivalent Pu(2), one Co(1), two equivalent Co(2), and four equivalent Co(3) atoms to form CoPu5Co7 cuboctahedra that share corners with two equivalent Co(1)Pu6Co6 cuboctahedra, corners with four equivalent Co(2)Pu3Co9 cuboctahedra, corners with fifteen equivalent Co(3)Pu5Co7 cuboctahedra, edges with eight equivalent Co(3)Pu5Co7 cuboctahedra, faces with three equivalent Co(1)Pu6Co6 cuboctahedra, faces with six equivalent Co(2)Pu3Co9 cuboctahedra, and faces with eleven equivalent Co(3)Pu5Co7 cuboctahedra. is represented by the CIF file [CIF]
data_PuCo3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.562
_cell_length_b   8.562
_cell_length_c   8.562
_cell_angle_alpha   32.239
_cell_angle_beta   32.239
_cell_angle_gamma   32.239
_symmetry_Int_Tables_number   1
_cell_volume   158.755
_cell_formula_units_Z   3
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  0.000  0.000  1.0
  Pu  Pu1  1  0.146  0.146  0.146  1.0
  Pu  Pu2  1  0.854  0.854  0.854  1.0
  Co  Co3  1  0.500  0.500  0.500  1.0
  Co  Co4  1  0.333  0.333  0.333  1.0
  Co  Co5  1  0.667  0.667  0.667  1.0
  Co  Co6  1  0.085  0.582  0.582  1.0
  Co  Co7  1  0.582  0.582  0.085  1.0
  Co  Co8  1  0.582  0.085  0.582  1.0
  Co  Co9  1  0.418  0.915  0.418  1.0
  Co  Co10  1  0.915  0.418  0.418  1.0
  Co  Co11  1  0.418  0.418  0.915  1.0
[/CIF]
.