The compound described by Ce2Fe12Co5 crystallizes in the trigonal R-3m space group. Ce(1) is bonded in a 19-coordinate geometry to six equivalent Fe(1), nine equivalent Fe(2), one Co(2), and three equivalent Co(1) atoms. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent Ce(1), two equivalent Fe(1), four equivalent Fe(2), two equivalent Co(1), and two equivalent Co(2) atoms to form distorted FeCe2Fe6Co4 cuboctahedra that share corners with four equivalent Co(1)Ce2Fe8Co2 cuboctahedra, corners with eight equivalent Fe(2)Ce3Fe6Co3 cuboctahedra, corners with twelve equivalent Fe(1)Ce2Fe6Co4 cuboctahedra,  an edgeedge with one Fe(1)Ce2Fe6Co4 cuboctahedra, edges with two equivalent Fe(2)Ce3Fe6Co3 cuboctahedra, edges with two equivalent Co(1)Ce2Fe8Co2 cuboctahedra, faces with four equivalent Co(1)Ce2Fe8Co2 cuboctahedra, faces with seven equivalent Fe(1)Ce2Fe6Co4 cuboctahedra, and faces with ten equivalent Fe(2)Ce3Fe6Co3 cuboctahedra. In the second Fe site, Fe(2) is bonded to three equivalent Ce(1), two equivalent Fe(2), four equivalent Fe(1), one Co(2), and two equivalent Co(1) atoms to form FeCe3Fe6Co3 cuboctahedra that share corners with five equivalent Co(1)Ce2Fe8Co2 cuboctahedra, corners with eight equivalent Fe(1)Ce2Fe6Co4 cuboctahedra, corners with ten equivalent Fe(2)Ce3Fe6Co3 cuboctahedra, edges with two equivalent Fe(1)Ce2Fe6Co4 cuboctahedra, edges with three equivalent Co(1)Ce2Fe8Co2 cuboctahedra, edges with five equivalent Fe(2)Ce3Fe6Co3 cuboctahedra, faces with three equivalent Co(1)Ce2Fe8Co2 cuboctahedra, faces with seven equivalent Fe(2)Ce3Fe6Co3 cuboctahedra, and faces with ten equivalent Fe(1)Ce2Fe6Co4 cuboctahedra. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent Ce(1), four equivalent Fe(1), four equivalent Fe(2), and two equivalent Co(2) atoms to form distorted CoCe2Fe8Co2 cuboctahedra that share corners with four equivalent Co(1)Ce2Fe8Co2 cuboctahedra, corners with eight equivalent Fe(1)Ce2Fe6Co4 cuboctahedra, corners with ten equivalent Fe(2)Ce3Fe6Co3 cuboctahedra, edges with four equivalent Fe(1)Ce2Fe6Co4 cuboctahedra, edges with six equivalent Fe(2)Ce3Fe6Co3 cuboctahedra, faces with four equivalent Co(1)Ce2Fe8Co2 cuboctahedra, faces with six equivalent Fe(2)Ce3Fe6Co3 cuboctahedra, and faces with eight equivalent Fe(1)Ce2Fe6Co4 cuboctahedra. In the second Co site, Co(2) is bonded in a 14-coordinate geometry to one Ce(1), three equivalent Fe(2), six equivalent Fe(1), one Co(2), and three equivalent Co(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ce2Fe12Co5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.413
_cell_length_b   6.413
_cell_length_c   6.413
_cell_angle_alpha   82.094
_cell_angle_beta   82.094
_cell_angle_gamma   82.094
_symmetry_Int_Tables_number   1
_cell_volume   256.887
_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
  Fe  Fe2  1  0.710  0.290  0.000  1.0
  Fe  Fe3  1  0.000  0.710  0.290  1.0
  Fe  Fe4  1  0.290  0.000  0.710  1.0
  Fe  Fe5  1  0.000  0.290  0.710  1.0
  Fe  Fe6  1  0.710  0.000  0.290  1.0
  Fe  Fe7  1  0.290  0.710  0.000  1.0
  Fe  Fe8  1  0.341  0.341  0.848  1.0
  Fe  Fe9  1  0.848  0.341  0.341  1.0
  Fe  Fe10  1  0.341  0.848  0.341  1.0
  Fe  Fe11  1  0.659  0.659  0.152  1.0
  Fe  Fe12  1  0.152  0.659  0.659  1.0
  Fe  Fe13  1  0.659  0.152  0.659  1.0
  Co  Co14  1  0.000  0.000  0.500  1.0
  Co  Co15  1  0.500  0.000  0.000  1.0
  Co  Co16  1  0.000  0.500  0.000  1.0
  Co  Co17  1  0.907  0.907  0.907  1.0
  Co  Co18  1  0.093  0.093  0.093  1.0
[/CIF]
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The compound described by Ce2Fe12Co5 crystallizes in the trigonal R-3m space group. Ce(1) is bonded in a 19-coordinate geometry to six equivalent Fe(1), nine equivalent Fe(2), one Co(2), and three equivalent Co(1) atoms. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent Ce(1), two equivalent Fe(1), four equivalent Fe(2), two equivalent Co(1), and two equivalent Co(2) atoms to form distorted FeCe2Fe6Co4 cuboctahedra that share corners with four equivalent Co(1)Ce2Fe8Co2 cuboctahedra, corners with eight equivalent Fe(2)Ce3Fe6Co3 cuboctahedra, corners with twelve equivalent Fe(1)Ce2Fe6Co4 cuboctahedra,  an edgeedge with one Fe(1)Ce2Fe6Co4 cuboctahedra, edges with two equivalent Fe(2)Ce3Fe6Co3 cuboctahedra, edges with two equivalent Co(1)Ce2Fe8Co2 cuboctahedra, faces with four equivalent Co(1)Ce2Fe8Co2 cuboctahedra, faces with seven equivalent Fe(1)Ce2Fe6Co4 cuboctahedra, and faces with ten equivalent Fe(2)Ce3Fe6Co3 cuboctahedra. In the second Fe site, Fe(2) is bonded to three equivalent Ce(1), two equivalent Fe(2), four equivalent Fe(1), one Co(2), and two equivalent Co(1) atoms to form FeCe3Fe6Co3 cuboctahedra that share corners with five equivalent Co(1)Ce2Fe8Co2 cuboctahedra, corners with eight equivalent Fe(1)Ce2Fe6Co4 cuboctahedra, corners with ten equivalent Fe(2)Ce3Fe6Co3 cuboctahedra, edges with two equivalent Fe(1)Ce2Fe6Co4 cuboctahedra, edges with three equivalent Co(1)Ce2Fe8Co2 cuboctahedra, edges with five equivalent Fe(2)Ce3Fe6Co3 cuboctahedra, faces with three equivalent Co(1)Ce2Fe8Co2 cuboctahedra, faces with seven equivalent Fe(2)Ce3Fe6Co3 cuboctahedra, and faces with ten equivalent Fe(1)Ce2Fe6Co4 cuboctahedra. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent Ce(1), four equivalent Fe(1), four equivalent Fe(2), and two equivalent Co(2) atoms to form distorted CoCe2Fe8Co2 cuboctahedra that share corners with four equivalent Co(1)Ce2Fe8Co2 cuboctahedra, corners with eight equivalent Fe(1)Ce2Fe6Co4 cuboctahedra, corners with ten equivalent Fe(2)Ce3Fe6Co3 cuboctahedra, edges with four equivalent Fe(1)Ce2Fe6Co4 cuboctahedra, edges with six equivalent Fe(2)Ce3Fe6Co3 cuboctahedra, faces with four equivalent Co(1)Ce2Fe8Co2 cuboctahedra, faces with six equivalent Fe(2)Ce3Fe6Co3 cuboctahedra, and faces with eight equivalent Fe(1)Ce2Fe6Co4 cuboctahedra. In the second Co site, Co(2) is bonded in a 14-coordinate geometry to one Ce(1), three equivalent Fe(2), six equivalent Fe(1), one Co(2), and three equivalent Co(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ce2Fe12Co5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.413
_cell_length_b   6.413
_cell_length_c   6.413
_cell_angle_alpha   82.094
_cell_angle_beta   82.094
_cell_angle_gamma   82.094
_symmetry_Int_Tables_number   1
_cell_volume   256.887
_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
  Fe  Fe2  1  0.710  0.290  0.000  1.0
  Fe  Fe3  1  0.000  0.710  0.290  1.0
  Fe  Fe4  1  0.290  0.000  0.710  1.0
  Fe  Fe5  1  0.000  0.290  0.710  1.0
  Fe  Fe6  1  0.710  0.000  0.290  1.0
  Fe  Fe7  1  0.290  0.710  0.000  1.0
  Fe  Fe8  1  0.341  0.341  0.848  1.0
  Fe  Fe9  1  0.848  0.341  0.341  1.0
  Fe  Fe10  1  0.341  0.848  0.341  1.0
  Fe  Fe11  1  0.659  0.659  0.152  1.0
  Fe  Fe12  1  0.152  0.659  0.659  1.0
  Fe  Fe13  1  0.659  0.152  0.659  1.0
  Co  Co14  1  0.000  0.000  0.500  1.0
  Co  Co15  1  0.500  0.000  0.000  1.0
  Co  Co16  1  0.000  0.500  0.000  1.0
  Co  Co17  1  0.907  0.907  0.907  1.0
  Co  Co18  1  0.093  0.093  0.093  1.0
[/CIF]
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