The structure described by Ce2Co17 crystallizes in the trigonal R-3m space group. Ce(1) is bonded in a 19-coordinate geometry to one Co(4), three equivalent Co(1), six equivalent Co(2), and nine equivalent Co(3) atoms. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent Ce(1), two equivalent Co(4), four equivalent Co(2), and four equivalent Co(3) atoms to form CoCe2Co10 cuboctahedra that share corners with four equivalent Co(1)Ce2Co10 cuboctahedra, corners with ten equivalent Co(3)Ce3Co9 cuboctahedra, edges with six equivalent Co(3)Ce3Co9 cuboctahedra, faces with four equivalent Co(1)Ce2Co10 cuboctahedra, and faces with six equivalent Co(3)Ce3Co9 cuboctahedra. In the second Co site, Co(2) is bonded in a 12-coordinate geometry to two equivalent Ce(1), two equivalent Co(1), two equivalent Co(2), two equivalent Co(4), and four equivalent Co(3) atoms. In the third Co site, Co(3) is bonded to three equivalent Ce(1), one Co(4), two equivalent Co(1), two equivalent Co(3), and four equivalent Co(2) atoms to form CoCe3Co9 cuboctahedra that share corners with five equivalent Co(1)Ce2Co10 cuboctahedra, corners with ten equivalent Co(3)Ce3Co9 cuboctahedra, edges with three equivalent Co(1)Ce2Co10 cuboctahedra, edges with five equivalent Co(3)Ce3Co9 cuboctahedra, faces with three equivalent Co(1)Ce2Co10 cuboctahedra, and faces with seven equivalent Co(3)Ce3Co9 cuboctahedra. In the fourth Co site, Co(4) is bonded in a 14-coordinate geometry to one Ce(1), one Co(4), three equivalent Co(1), three equivalent Co(3), and six equivalent Co(2) atoms. is represented by the CIF card [CIF]
data_Ce2Co17
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.303
_cell_length_b   6.303
_cell_length_c   6.303
_cell_angle_alpha   83.086
_cell_angle_beta   83.086
_cell_angle_gamma   83.086
_symmetry_Int_Tables_number   1
_cell_volume   245.326
_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
  Ce  Ce0  1  0.655  0.655  0.655  1.0
  Ce  Ce1  1  0.345  0.345  0.345  1.0
  Co  Co2  1  0.000  0.000  0.500  1.0
  Co  Co3  1  0.000  0.500  0.000  1.0
  Co  Co4  1  0.500  0.000  0.000  1.0
  Co  Co5  1  0.285  0.715  0.000  1.0
  Co  Co6  1  0.715  0.000  0.285  1.0
  Co  Co7  1  0.000  0.285  0.715  1.0
  Co  Co8  1  0.285  0.000  0.715  1.0
  Co  Co9  1  0.000  0.715  0.285  1.0
  Co  Co10  1  0.715  0.285  0.000  1.0
  Co  Co11  1  0.346  0.346  0.853  1.0
  Co  Co12  1  0.346  0.853  0.346  1.0
  Co  Co13  1  0.853  0.346  0.346  1.0
  Co  Co14  1  0.654  0.654  0.147  1.0
  Co  Co15  1  0.654  0.147  0.654  1.0
  Co  Co16  1  0.147  0.654  0.654  1.0
  Co  Co17  1  0.903  0.903  0.903  1.0
  Co  Co18  1  0.097  0.097  0.097  1.0
[/CIF]
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The structure described by Ce2Co17 crystallizes in the trigonal R-3m space group. Ce(1) is bonded in a 19-coordinate geometry to one Co(4), three equivalent Co(1), six equivalent Co(2), and nine equivalent Co(3) atoms. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent Ce(1), two equivalent Co(4), four equivalent Co(2), and four equivalent Co(3) atoms to form CoCe2Co10 cuboctahedra that share corners with four equivalent Co(1)Ce2Co10 cuboctahedra, corners with ten equivalent Co(3)Ce3Co9 cuboctahedra, edges with six equivalent Co(3)Ce3Co9 cuboctahedra, faces with four equivalent Co(1)Ce2Co10 cuboctahedra, and faces with six equivalent Co(3)Ce3Co9 cuboctahedra. In the second Co site, Co(2) is bonded in a 12-coordinate geometry to two equivalent Ce(1), two equivalent Co(1), two equivalent Co(2), two equivalent Co(4), and four equivalent Co(3) atoms. In the third Co site, Co(3) is bonded to three equivalent Ce(1), one Co(4), two equivalent Co(1), two equivalent Co(3), and four equivalent Co(2) atoms to form CoCe3Co9 cuboctahedra that share corners with five equivalent Co(1)Ce2Co10 cuboctahedra, corners with ten equivalent Co(3)Ce3Co9 cuboctahedra, edges with three equivalent Co(1)Ce2Co10 cuboctahedra, edges with five equivalent Co(3)Ce3Co9 cuboctahedra, faces with three equivalent Co(1)Ce2Co10 cuboctahedra, and faces with seven equivalent Co(3)Ce3Co9 cuboctahedra. In the fourth Co site, Co(4) is bonded in a 14-coordinate geometry to one Ce(1), one Co(4), three equivalent Co(1), three equivalent Co(3), and six equivalent Co(2) atoms. is represented by the CIF card [CIF]
data_Ce2Co17
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.303
_cell_length_b   6.303
_cell_length_c   6.303
_cell_angle_alpha   83.086
_cell_angle_beta   83.086
_cell_angle_gamma   83.086
_symmetry_Int_Tables_number   1
_cell_volume   245.326
_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
  Ce  Ce0  1  0.655  0.655  0.655  1.0
  Ce  Ce1  1  0.345  0.345  0.345  1.0
  Co  Co2  1  0.000  0.000  0.500  1.0
  Co  Co3  1  0.000  0.500  0.000  1.0
  Co  Co4  1  0.500  0.000  0.000  1.0
  Co  Co5  1  0.285  0.715  0.000  1.0
  Co  Co6  1  0.715  0.000  0.285  1.0
  Co  Co7  1  0.000  0.285  0.715  1.0
  Co  Co8  1  0.285  0.000  0.715  1.0
  Co  Co9  1  0.000  0.715  0.285  1.0
  Co  Co10  1  0.715  0.285  0.000  1.0
  Co  Co11  1  0.346  0.346  0.853  1.0
  Co  Co12  1  0.346  0.853  0.346  1.0
  Co  Co13  1  0.853  0.346  0.346  1.0
  Co  Co14  1  0.654  0.654  0.147  1.0
  Co  Co15  1  0.654  0.147  0.654  1.0
  Co  Co16  1  0.147  0.654  0.654  1.0
  Co  Co17  1  0.903  0.903  0.903  1.0
  Co  Co18  1  0.097  0.097  0.097  1.0
[/CIF]
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