The structure described by Ce2Co5B2 crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 20-coordinate geometry to one Ce(1), one Ce(2), six equivalent Co(1), six equivalent Co(2), three equivalent B(1), and three equivalent B(2) atoms. In the second Ce site, Ce(2) is bonded in a 16-coordinate geometry to one Ce(1), three equivalent Ce(2), three equivalent Co(3), and nine equivalent Co(1) atoms. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded in a distorted L-shaped geometry to two equivalent Ce(1), three equivalent Ce(2), one Co(3), one B(1), and one B(2) atom. In the second Co site, Co(2) is bonded in a distorted rectangular see-saw-like geometry to four equivalent Ce(1), two equivalent B(1), and two equivalent B(2) atoms. In the third Co site, Co(3) is bonded to six equivalent Ce(2) and six equivalent Co(1) atoms to form edge-sharing CoCe6Co6 cuboctahedra. There are two inequivalent B sites. In the first B site, B(1) is bonded in a 6-coordinate geometry to three equivalent Ce(1), three equivalent Co(1), and three equivalent Co(2) atoms. In the second B site, B(2) is bonded in a 6-coordinate geometry to three equivalent Ce(1), three equivalent Co(1), and three equivalent Co(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ce2Co5B2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.092
_cell_length_b   5.092
_cell_length_c   19.840
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   445.455
_cell_formula_units_Z   4
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  0.667  0.333  0.828  1.0
  Ce  Ce1  1  0.667  0.333  0.981  1.0
  Ce  Ce2  1  0.333  0.667  0.481  1.0
  Ce  Ce3  1  0.333  0.667  0.019  1.0
  Ce  Ce4  1  0.333  0.667  0.172  1.0
  Ce  Ce5  1  0.667  0.333  0.519  1.0
  Ce  Ce6  1  0.667  0.333  0.672  1.0
  Ce  Ce7  1  0.333  0.667  0.328  1.0
  Co  Co8  1  0.163  0.326  0.895  1.0
  Co  Co9  1  0.163  0.837  0.605  1.0
  Co  Co10  1  0.837  0.163  0.395  1.0
  Co  Co11  1  0.335  0.167  0.250  1.0
  Co  Co12  1  0.326  0.163  0.395  1.0
  Co  Co13  1  0.837  0.674  0.105  1.0
  Co  Co14  1  0.837  0.674  0.395  1.0
  Co  Co15  1  0.833  0.665  0.250  1.0
  Co  Co16  1  0.674  0.837  0.605  1.0
  Co  Co17  1  0.665  0.833  0.750  1.0
  Co  Co18  1  0.837  0.163  0.105  1.0
  Co  Co19  1  0.674  0.837  0.895  1.0
  Co  Co20  1  0.000  0.000  0.000  1.0
  Co  Co21  1  0.167  0.335  0.750  1.0
  Co  Co22  1  0.167  0.833  0.750  1.0
  Co  Co23  1  0.833  0.167  0.250  1.0
  Co  Co24  1  0.326  0.163  0.105  1.0
  Co  Co25  1  0.000  0.000  0.500  1.0
  Co  Co26  1  0.163  0.837  0.895  1.0
  Co  Co27  1  0.163  0.326  0.605  1.0
  B  B28  1  0.333  0.667  0.825  1.0
  B  B29  1  0.333  0.667  0.675  1.0
  B  B30  1  0.667  0.333  0.325  1.0
  B  B31  1  0.000  0.000  0.823  1.0
  B  B32  1  0.667  0.333  0.175  1.0
  B  B33  1  0.000  0.000  0.677  1.0
  B  B34  1  0.000  0.000  0.323  1.0
  B  B35  1  0.000  0.000  0.177  1.0
[/CIF]
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The structure described by Ce2Co5B2 crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 20-coordinate geometry to one Ce(1), one Ce(2), six equivalent Co(1), six equivalent Co(2), three equivalent B(1), and three equivalent B(2) atoms. In the second Ce site, Ce(2) is bonded in a 16-coordinate geometry to one Ce(1), three equivalent Ce(2), three equivalent Co(3), and nine equivalent Co(1) atoms. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded in a distorted L-shaped geometry to two equivalent Ce(1), three equivalent Ce(2), one Co(3), one B(1), and one B(2) atom. In the second Co site, Co(2) is bonded in a distorted rectangular see-saw-like geometry to four equivalent Ce(1), two equivalent B(1), and two equivalent B(2) atoms. In the third Co site, Co(3) is bonded to six equivalent Ce(2) and six equivalent Co(1) atoms to form edge-sharing CoCe6Co6 cuboctahedra. There are two inequivalent B sites. In the first B site, B(1) is bonded in a 6-coordinate geometry to three equivalent Ce(1), three equivalent Co(1), and three equivalent Co(2) atoms. In the second B site, B(2) is bonded in a 6-coordinate geometry to three equivalent Ce(1), three equivalent Co(1), and three equivalent Co(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ce2Co5B2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.092
_cell_length_b   5.092
_cell_length_c   19.840
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   445.455
_cell_formula_units_Z   4
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  0.667  0.333  0.828  1.0
  Ce  Ce1  1  0.667  0.333  0.981  1.0
  Ce  Ce2  1  0.333  0.667  0.481  1.0
  Ce  Ce3  1  0.333  0.667  0.019  1.0
  Ce  Ce4  1  0.333  0.667  0.172  1.0
  Ce  Ce5  1  0.667  0.333  0.519  1.0
  Ce  Ce6  1  0.667  0.333  0.672  1.0
  Ce  Ce7  1  0.333  0.667  0.328  1.0
  Co  Co8  1  0.163  0.326  0.895  1.0
  Co  Co9  1  0.163  0.837  0.605  1.0
  Co  Co10  1  0.837  0.163  0.395  1.0
  Co  Co11  1  0.335  0.167  0.250  1.0
  Co  Co12  1  0.326  0.163  0.395  1.0
  Co  Co13  1  0.837  0.674  0.105  1.0
  Co  Co14  1  0.837  0.674  0.395  1.0
  Co  Co15  1  0.833  0.665  0.250  1.0
  Co  Co16  1  0.674  0.837  0.605  1.0
  Co  Co17  1  0.665  0.833  0.750  1.0
  Co  Co18  1  0.837  0.163  0.105  1.0
  Co  Co19  1  0.674  0.837  0.895  1.0
  Co  Co20  1  0.000  0.000  0.000  1.0
  Co  Co21  1  0.167  0.335  0.750  1.0
  Co  Co22  1  0.167  0.833  0.750  1.0
  Co  Co23  1  0.833  0.167  0.250  1.0
  Co  Co24  1  0.326  0.163  0.105  1.0
  Co  Co25  1  0.000  0.000  0.500  1.0
  Co  Co26  1  0.163  0.837  0.895  1.0
  Co  Co27  1  0.163  0.326  0.605  1.0
  B  B28  1  0.333  0.667  0.825  1.0
  B  B29  1  0.333  0.667  0.675  1.0
  B  B30  1  0.667  0.333  0.325  1.0
  B  B31  1  0.000  0.000  0.823  1.0
  B  B32  1  0.667  0.333  0.175  1.0
  B  B33  1  0.000  0.000  0.677  1.0
  B  B34  1  0.000  0.000  0.323  1.0
  B  B35  1  0.000  0.000  0.177  1.0
[/CIF]
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