The compound described by Pu2Co17 crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Pu sites. In the first Pu site, Pu(1) is bonded in a 18-coordinate geometry to six equivalent Co(1) and twelve equivalent Co(3) atoms. In the second Pu site, Pu(2) is bonded in a 20-coordinate geometry to two equivalent Co(4), six equivalent Co(1), six equivalent Co(2), and six equivalent Co(3) atoms. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded in a 12-coordinate geometry to one Pu(1), one Pu(2), two equivalent Co(1), two equivalent Co(2), two equivalent Co(4), and four equivalent Co(3) atoms. In the second Co site, Co(2) is bonded to two equivalent Pu(2), two equivalent Co(4), four equivalent Co(1), and four equivalent Co(3) atoms to form CoPu2Co10 cuboctahedra that share corners with four equivalent Co(2)Pu2Co10 cuboctahedra, corners with ten equivalent Co(3)Pu3Co9 cuboctahedra, edges with six equivalent Co(3)Pu3Co9 cuboctahedra, faces with four equivalent Co(3)Pu3Co9 cuboctahedra, and faces with six equivalent Co(2)Pu2Co10 cuboctahedra. In the third Co site, Co(3) is bonded to one Pu(2), two equivalent Pu(1), one Co(4), two equivalent Co(2), two equivalent Co(3), and four equivalent Co(1) atoms to form distorted CoPu3Co9 cuboctahedra that share corners with five equivalent Co(2)Pu2Co10 cuboctahedra, corners with ten equivalent Co(3)Pu3Co9 cuboctahedra, edges with three equivalent Co(2)Pu2Co10 cuboctahedra, edges with five equivalent Co(3)Pu3Co9 cuboctahedra, faces with two equivalent Co(2)Pu2Co10 cuboctahedra, and faces with eight equivalent Co(3)Pu3Co9 cuboctahedra. In the fourth Co site, Co(4) is bonded in a 14-coordinate geometry to one Pu(2), one Co(4), three equivalent Co(2), three equivalent Co(3), and six equivalent Co(1) atoms. is represented by the CIF card [CIF]
data_Pu2Co17
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.289
_cell_length_b   8.289
_cell_length_c   8.081
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   480.911
_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
  Pu  Pu0  1  0.000  0.000  0.250  1.0
  Pu  Pu1  1  0.000  0.000  0.750  1.0
  Pu  Pu2  1  0.667  0.333  0.250  1.0
  Pu  Pu3  1  0.333  0.667  0.750  1.0
  Co  Co4  1  0.330  0.374  0.250  1.0
  Co  Co5  1  0.500  0.000  0.000  1.0
  Co  Co6  1  0.626  0.956  0.250  1.0
  Co  Co7  1  0.670  0.626  0.750  1.0
  Co  Co8  1  0.832  0.168  0.477  1.0
  Co  Co9  1  0.335  0.168  0.477  1.0
  Co  Co10  1  0.168  0.335  0.523  1.0
  Co  Co11  1  0.374  0.330  0.750  1.0
  Co  Co12  1  0.333  0.667  0.395  1.0
  Co  Co13  1  0.667  0.333  0.895  1.0
  Co  Co14  1  0.956  0.626  0.750  1.0
  Co  Co15  1  0.665  0.832  0.977  1.0
  Co  Co16  1  0.374  0.044  0.750  1.0
  Co  Co17  1  0.832  0.168  0.023  1.0
  Co  Co18  1  0.168  0.335  0.977  1.0
  Co  Co19  1  0.832  0.665  0.477  1.0
  Co  Co20  1  0.044  0.374  0.250  1.0
  Co  Co21  1  0.832  0.665  0.023  1.0
  Co  Co22  1  0.667  0.333  0.605  1.0
  Co  Co23  1  0.665  0.832  0.523  1.0
  Co  Co24  1  0.500  0.500  0.000  1.0
  Co  Co25  1  0.333  0.667  0.105  1.0
  Co  Co26  1  0.168  0.832  0.523  1.0
  Co  Co27  1  0.000  0.500  0.000  1.0
  Co  Co28  1  0.670  0.044  0.750  1.0
  Co  Co29  1  0.335  0.168  0.023  1.0
  Co  Co30  1  0.626  0.670  0.250  1.0
  Co  Co31  1  0.168  0.832  0.977  1.0
  Co  Co32  1  0.044  0.670  0.250  1.0
  Co  Co33  1  0.000  0.500  0.500  1.0
  Co  Co34  1  0.956  0.330  0.750  1.0
  Co  Co35  1  0.330  0.956  0.250  1.0
  Co  Co36  1  0.500  0.500  0.500  1.0
  Co  Co37  1  0.500  0.000  0.500  1.0
[/CIF]
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The compound described by Pu2Co17 crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Pu sites. In the first Pu site, Pu(1) is bonded in a 18-coordinate geometry to six equivalent Co(1) and twelve equivalent Co(3) atoms. In the second Pu site, Pu(2) is bonded in a 20-coordinate geometry to two equivalent Co(4), six equivalent Co(1), six equivalent Co(2), and six equivalent Co(3) atoms. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded in a 12-coordinate geometry to one Pu(1), one Pu(2), two equivalent Co(1), two equivalent Co(2), two equivalent Co(4), and four equivalent Co(3) atoms. In the second Co site, Co(2) is bonded to two equivalent Pu(2), two equivalent Co(4), four equivalent Co(1), and four equivalent Co(3) atoms to form CoPu2Co10 cuboctahedra that share corners with four equivalent Co(2)Pu2Co10 cuboctahedra, corners with ten equivalent Co(3)Pu3Co9 cuboctahedra, edges with six equivalent Co(3)Pu3Co9 cuboctahedra, faces with four equivalent Co(3)Pu3Co9 cuboctahedra, and faces with six equivalent Co(2)Pu2Co10 cuboctahedra. In the third Co site, Co(3) is bonded to one Pu(2), two equivalent Pu(1), one Co(4), two equivalent Co(2), two equivalent Co(3), and four equivalent Co(1) atoms to form distorted CoPu3Co9 cuboctahedra that share corners with five equivalent Co(2)Pu2Co10 cuboctahedra, corners with ten equivalent Co(3)Pu3Co9 cuboctahedra, edges with three equivalent Co(2)Pu2Co10 cuboctahedra, edges with five equivalent Co(3)Pu3Co9 cuboctahedra, faces with two equivalent Co(2)Pu2Co10 cuboctahedra, and faces with eight equivalent Co(3)Pu3Co9 cuboctahedra. In the fourth Co site, Co(4) is bonded in a 14-coordinate geometry to one Pu(2), one Co(4), three equivalent Co(2), three equivalent Co(3), and six equivalent Co(1) atoms. is represented by the CIF card [CIF]
data_Pu2Co17
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.289
_cell_length_b   8.289
_cell_length_c   8.081
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   480.911
_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
  Pu  Pu0  1  0.000  0.000  0.250  1.0
  Pu  Pu1  1  0.000  0.000  0.750  1.0
  Pu  Pu2  1  0.667  0.333  0.250  1.0
  Pu  Pu3  1  0.333  0.667  0.750  1.0
  Co  Co4  1  0.330  0.374  0.250  1.0
  Co  Co5  1  0.500  0.000  0.000  1.0
  Co  Co6  1  0.626  0.956  0.250  1.0
  Co  Co7  1  0.670  0.626  0.750  1.0
  Co  Co8  1  0.832  0.168  0.477  1.0
  Co  Co9  1  0.335  0.168  0.477  1.0
  Co  Co10  1  0.168  0.335  0.523  1.0
  Co  Co11  1  0.374  0.330  0.750  1.0
  Co  Co12  1  0.333  0.667  0.395  1.0
  Co  Co13  1  0.667  0.333  0.895  1.0
  Co  Co14  1  0.956  0.626  0.750  1.0
  Co  Co15  1  0.665  0.832  0.977  1.0
  Co  Co16  1  0.374  0.044  0.750  1.0
  Co  Co17  1  0.832  0.168  0.023  1.0
  Co  Co18  1  0.168  0.335  0.977  1.0
  Co  Co19  1  0.832  0.665  0.477  1.0
  Co  Co20  1  0.044  0.374  0.250  1.0
  Co  Co21  1  0.832  0.665  0.023  1.0
  Co  Co22  1  0.667  0.333  0.605  1.0
  Co  Co23  1  0.665  0.832  0.523  1.0
  Co  Co24  1  0.500  0.500  0.000  1.0
  Co  Co25  1  0.333  0.667  0.105  1.0
  Co  Co26  1  0.168  0.832  0.523  1.0
  Co  Co27  1  0.000  0.500  0.000  1.0
  Co  Co28  1  0.670  0.044  0.750  1.0
  Co  Co29  1  0.335  0.168  0.023  1.0
  Co  Co30  1  0.626  0.670  0.250  1.0
  Co  Co31  1  0.168  0.832  0.977  1.0
  Co  Co32  1  0.044  0.670  0.250  1.0
  Co  Co33  1  0.000  0.500  0.500  1.0
  Co  Co34  1  0.956  0.330  0.750  1.0
  Co  Co35  1  0.330  0.956  0.250  1.0
  Co  Co36  1  0.500  0.500  0.500  1.0
  Co  Co37  1  0.500  0.000  0.500  1.0
[/CIF]
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