The compound described by CeCo2Zn is Frank-Kasper $\mu$ Phase-derived structured and 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 12-coordinate geometry to one Ce(2), nine equivalent Co(1), and three equivalent Zn(3) atoms. In the second Ce site, Ce(2) is bonded in a 20-coordinate geometry to two equivalent Ce(1), twelve equivalent Co(1), three equivalent Zn(1), and three equivalent Zn(2) atoms. Co(1) is bonded to two equivalent Ce(2), three equivalent Ce(1), four equivalent Co(1), one Zn(1), one Zn(2), and one Zn(3) atom to form distorted CoCe5Zn3Co4 cuboctahedra that share corners with two equivalent Zn(3)Ce6Co6 cuboctahedra, corners with fifteen equivalent Co(1)Ce5Zn3Co4 cuboctahedra, edges with eight equivalent Co(1)Ce5Zn3Co4 cuboctahedra, faces with three equivalent Zn(3)Ce6Co6 cuboctahedra, and faces with eleven equivalent Co(1)Ce5Zn3Co4 cuboctahedra. There are three inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 9-coordinate geometry to three equivalent Ce(2) and six equivalent Co(1) atoms. In the second Zn site, Zn(2) is bonded in a 9-coordinate geometry to three equivalent Ce(2) and six equivalent Co(1) atoms. In the third Zn site, Zn(3) is bonded to six equivalent Ce(1) and six equivalent Co(1) atoms to form distorted ZnCe6Co6 cuboctahedra that share corners with twelve equivalent Co(1)Ce5Zn3Co4 cuboctahedra, edges with six equivalent Zn(3)Ce6Co6 cuboctahedra, and faces with eighteen equivalent Co(1)Ce5Zn3Co4 cuboctahedra. is represented by the CIF file [CIF]
data_CeZnCo2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.173
_cell_length_b   5.173
_cell_length_c   15.856
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   367.514
_cell_formula_units_Z   6
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  0.333  0.667  0.546  1.0
  Ce  Ce1  1  0.667  0.333  0.454  1.0
  Ce  Ce2  1  0.667  0.333  0.046  1.0
  Ce  Ce3  1  0.333  0.667  0.954  1.0
  Ce  Ce4  1  0.333  0.667  0.750  1.0
  Ce  Ce5  1  0.667  0.333  0.250  1.0
  Zn  Zn6  1  0.000  0.000  0.250  1.0
  Zn  Zn7  1  0.000  0.000  0.750  1.0
  Zn  Zn8  1  0.333  0.667  0.250  1.0
  Zn  Zn9  1  0.667  0.333  0.750  1.0
  Zn  Zn10  1  0.000  0.000  0.000  1.0
  Zn  Zn11  1  0.000  0.000  0.500  1.0
  Co  Co12  1  0.168  0.337  0.124  1.0
  Co  Co13  1  0.832  0.663  0.876  1.0
  Co  Co14  1  0.663  0.832  0.124  1.0
  Co  Co15  1  0.832  0.663  0.624  1.0
  Co  Co16  1  0.337  0.168  0.876  1.0
  Co  Co17  1  0.168  0.337  0.376  1.0
  Co  Co18  1  0.168  0.832  0.124  1.0
  Co  Co19  1  0.337  0.168  0.624  1.0
  Co  Co20  1  0.832  0.168  0.876  1.0
  Co  Co21  1  0.663  0.832  0.376  1.0
  Co  Co22  1  0.832  0.168  0.624  1.0
  Co  Co23  1  0.168  0.832  0.376  1.0
[/CIF]
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The compound described by CeCo2Zn is Frank-Kasper $\mu$ Phase-derived structured and 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 12-coordinate geometry to one Ce(2), nine equivalent Co(1), and three equivalent Zn(3) atoms. In the second Ce site, Ce(2) is bonded in a 20-coordinate geometry to two equivalent Ce(1), twelve equivalent Co(1), three equivalent Zn(1), and three equivalent Zn(2) atoms. Co(1) is bonded to two equivalent Ce(2), three equivalent Ce(1), four equivalent Co(1), one Zn(1), one Zn(2), and one Zn(3) atom to form distorted CoCe5Zn3Co4 cuboctahedra that share corners with two equivalent Zn(3)Ce6Co6 cuboctahedra, corners with fifteen equivalent Co(1)Ce5Zn3Co4 cuboctahedra, edges with eight equivalent Co(1)Ce5Zn3Co4 cuboctahedra, faces with three equivalent Zn(3)Ce6Co6 cuboctahedra, and faces with eleven equivalent Co(1)Ce5Zn3Co4 cuboctahedra. There are three inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 9-coordinate geometry to three equivalent Ce(2) and six equivalent Co(1) atoms. In the second Zn site, Zn(2) is bonded in a 9-coordinate geometry to three equivalent Ce(2) and six equivalent Co(1) atoms. In the third Zn site, Zn(3) is bonded to six equivalent Ce(1) and six equivalent Co(1) atoms to form distorted ZnCe6Co6 cuboctahedra that share corners with twelve equivalent Co(1)Ce5Zn3Co4 cuboctahedra, edges with six equivalent Zn(3)Ce6Co6 cuboctahedra, and faces with eighteen equivalent Co(1)Ce5Zn3Co4 cuboctahedra. is represented by the CIF file [CIF]
data_CeZnCo2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.173
_cell_length_b   5.173
_cell_length_c   15.856
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   367.514
_cell_formula_units_Z   6
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  0.333  0.667  0.546  1.0
  Ce  Ce1  1  0.667  0.333  0.454  1.0
  Ce  Ce2  1  0.667  0.333  0.046  1.0
  Ce  Ce3  1  0.333  0.667  0.954  1.0
  Ce  Ce4  1  0.333  0.667  0.750  1.0
  Ce  Ce5  1  0.667  0.333  0.250  1.0
  Zn  Zn6  1  0.000  0.000  0.250  1.0
  Zn  Zn7  1  0.000  0.000  0.750  1.0
  Zn  Zn8  1  0.333  0.667  0.250  1.0
  Zn  Zn9  1  0.667  0.333  0.750  1.0
  Zn  Zn10  1  0.000  0.000  0.000  1.0
  Zn  Zn11  1  0.000  0.000  0.500  1.0
  Co  Co12  1  0.168  0.337  0.124  1.0
  Co  Co13  1  0.832  0.663  0.876  1.0
  Co  Co14  1  0.663  0.832  0.124  1.0
  Co  Co15  1  0.832  0.663  0.624  1.0
  Co  Co16  1  0.337  0.168  0.876  1.0
  Co  Co17  1  0.168  0.337  0.376  1.0
  Co  Co18  1  0.168  0.832  0.124  1.0
  Co  Co19  1  0.337  0.168  0.624  1.0
  Co  Co20  1  0.832  0.168  0.876  1.0
  Co  Co21  1  0.663  0.832  0.376  1.0
  Co  Co22  1  0.832  0.168  0.624  1.0
  Co  Co23  1  0.168  0.832  0.376  1.0
[/CIF]
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