The crystal structure described by YZrCo6 is Frank-Kasper $\mu$ Phase-derived structured and crystallizes in the trigonal R3m space group. There are three inequivalent Y sites. In the first Y site, Y(1) is bonded in a 12-coordinate geometry to three equivalent Y(3), three equivalent Co(3), three equivalent Co(9), and six equivalent Co(1) atoms. In the second Y site, Y(2) is bonded in a 16-coordinate geometry to one Zr(2), three equivalent Zr(1), three equivalent Co(10), three equivalent Co(4), and six equivalent Co(2) atoms. In the third Y site, Y(3) is bonded in a 16-coordinate geometry to three equivalent Y(1), one Zr(2), three equivalent Co(1), three equivalent Co(9), and six equivalent Co(3) atoms. There are three inequivalent Zr sites. In the first Zr site, Zr(1) is bonded in a 15-coordinate geometry to three equivalent Y(2), three equivalent Co(10), three equivalent Co(2), and six equivalent Co(4) atoms. In the second Zr site, Zr(2) is bonded in a 6-coordinate geometry to one Y(2), one Y(3), three equivalent Co(5), three equivalent Co(8), six equivalent Co(2), and six equivalent Co(3) atoms. In the third Zr site, Zr(3) is bonded in a 6-coordinate geometry to three equivalent Co(6), three equivalent Co(7), six equivalent Co(1), and six equivalent Co(4) atoms. There are ten inequivalent Co sites. In the first Co site, Co(7) is bonded to three equivalent Zr(3), three equivalent Co(1), and three equivalent Co(4) atoms to form distorted CoZr3Co6 cuboctahedra that share corners with three equivalent Co(9)Y6Co6 cuboctahedra, corners with three equivalent Co(6)Zr3Co6 cuboctahedra, corners with six equivalent Co(1)Y3Zr2Co7 cuboctahedra, corners with six equivalent Co(4)YZr4Co7 cuboctahedra, corners with six equivalent Co(7)Zr3Co6 cuboctahedra, edges with six equivalent Co(1)Y3Zr2Co7 cuboctahedra, edges with six equivalent Co(4)YZr4Co7 cuboctahedra,  a faceface with one Co(10)Y3Zr3Co6 cuboctahedra, faces with three equivalent Co(1)Y3Zr2Co7 cuboctahedra, faces with three equivalent Co(4)YZr4Co7 cuboctahedra, and faces with three equivalent Co(6)Zr3Co6 cuboctahedra. In the second Co site, Co(8) is bonded to three equivalent Zr(2), three equivalent Co(2), and three equivalent Co(3) atoms to form distorted CoZr3Co6 cuboctahedra that share corners with three equivalent Co(10)Y3Zr3Co6 cuboctahedra, corners with three equivalent Co(5)Zr3Co6 cuboctahedra, corners with six equivalent Co(2)Y2Zr3Co7 cuboctahedra, corners with six equivalent Co(3)Y3Zr2Co7 cuboctahedra, corners with six equivalent Co(8)Zr3Co6 cuboctahedra, edges with six equivalent Co(2)Y2Zr3Co7 cuboctahedra, edges with six equivalent Co(3)Y3Zr2Co7 cuboctahedra,  a faceface with one Co(9)Y6Co6 cuboctahedra, faces with three equivalent Co(2)Y2Zr3Co7 cuboctahedra, faces with three equivalent Co(3)Y3Zr2Co7 cuboctahedra, and faces with three equivalent Co(5)Zr3Co6 cuboctahedra. In the third Co site, Co(9) is bonded to three equivalent Y(1), three equivalent Y(3), three equivalent Co(1), and three equivalent Co(3) atoms to form CoY6Co6 cuboctahedra that share corners with three equivalent Co(5)Zr3Co6 cuboctahedra, corners with three equivalent Co(7)Zr3Co6 cuboctahedra, corners with six equivalent Co(1)Y3Zr2Co7 cuboctahedra, corners with six equivalent Co(3)Y3Zr2Co7 cuboctahedra, edges with six equivalent Co(9)Y6Co6 cuboctahedra,  a faceface with one Co(6)Zr3Co6 cuboctahedra,  a faceface with one Co(8)Zr3Co6 cuboctahedra, faces with nine equivalent Co(1)Y3Zr2Co7 cuboctahedra, and faces with nine equivalent Co(3)Y3Zr2Co7 cuboctahedra. In the fourth Co site, Co(10) is bonded to three equivalent Y(2), three equivalent Zr(1), three equivalent Co(2), and three equivalent Co(4) atoms to form CoY3Zr3Co6 cuboctahedra that share corners with three equivalent Co(6)Zr3Co6 cuboctahedra, corners with three equivalent Co(8)Zr3Co6 cuboctahedra, corners with six equivalent Co(2)Y2Zr3Co7 cuboctahedra, corners with six equivalent Co(4)YZr4Co7 cuboctahedra, edges with six equivalent Co(10)Y3Zr3Co6 cuboctahedra,  a faceface with one Co(5)Zr3Co6 cuboctahedra,  a faceface with one Co(7)Zr3Co6 cuboctahedra, faces with nine equivalent Co(2)Y2Zr3Co7 cuboctahedra, and faces with nine equivalent Co(4)YZr4Co7 cuboctahedra. In the fifth Co site, Co(1) is bonded to one Y(3), two equivalent Y(1), two equivalent Zr(3), one Co(6), one Co(7), one Co(9), and four equivalent Co(1) atoms to form CoY3Zr2Co7 cuboctahedra that share corners with two equivalent Co(9)Y6Co6 cuboctahedra, corners with two equivalent Co(6)Zr3Co6 cuboctahedra, corners with two equivalent Co(7)Zr3Co6 cuboctahedra, corners with four equivalent Co(1)Y3Zr2Co7 cuboctahedra, corners with five equivalent Co(3)Y3Zr2Co7 cuboctahedra, corners with six equivalent Co(4)YZr4Co7 cuboctahedra, edges with two equivalent Co(1)Y3Zr2Co7 cuboctahedra, edges with two equivalent Co(3)Y3Zr2Co7 cuboctahedra, edges with two equivalent Co(6)Zr3Co6 cuboctahedra, edges with two equivalent Co(7)Zr3Co6 cuboctahedra, edges with four equivalent Co(4)YZr4Co7 cuboctahedra,  a faceface with one Co(4)YZr4Co7 cuboctahedra,  a faceface with one Co(6)Zr3Co6 cuboctahedra,  a faceface with one Co(7)Zr3Co6 cuboctahedra, faces with two equivalent Co(3)Y3Zr2Co7 cuboctahedra, faces with three equivalent Co(9)Y6Co6 cuboctahedra, and faces with eight equivalent Co(1)Y3Zr2Co7 cuboctahedra. In the sixth Co site, Co(2) is bonded to two equivalent Y(2), one Zr(1), two equivalent Zr(2), one Co(10), one Co(5), one Co(8), and four equivalent Co(2) atoms to form distorted CoY2Zr3Co7 cuboctahedra that share corners with two equivalent Co(10)Y3Zr3Co6 cuboctahedra, corners with two equivalent Co(5)Zr3Co6 cuboctahedra, corners with two equivalent Co(8)Zr3Co6 cuboctahedra, corners with four equivalent Co(2)Y2Zr3Co7 cuboctahedra, corners with five equivalent Co(4)YZr4Co7 cuboctahedra, corners with six equivalent Co(3)Y3Zr2Co7 cuboctahedra, edges with two equivalent Co(2)Y2Zr3Co7 cuboctahedra, edges with two equivalent Co(4)YZr4Co7 cuboctahedra, edges with two equivalent Co(5)Zr3Co6 cuboctahedra, edges with two equivalent Co(8)Zr3Co6 cuboctahedra, edges with four equivalent Co(3)Y3Zr2Co7 cuboctahedra,  a faceface with one Co(3)Y3Zr2Co7 cuboctahedra,  a faceface with one Co(5)Zr3Co6 cuboctahedra,  a faceface with one Co(8)Zr3Co6 cuboctahedra, faces with two equivalent Co(4)YZr4Co7 cuboctahedra, faces with three equivalent Co(10)Y3Zr3Co6 cuboctahedra, and faces with eight equivalent Co(2)Y2Zr3Co7 cuboctahedra. In the seventh Co site, Co(3) is bonded to one Y(1), two equivalent Y(3), two equivalent Zr(2), one Co(5), one Co(8), one Co(9), and four equivalent Co(3) atoms to form CoY3Zr2Co7 cuboctahedra that share corners with two equivalent Co(9)Y6Co6 cuboctahedra, corners with two equivalent Co(5)Zr3Co6 cuboctahedra, corners with two equivalent Co(8)Zr3Co6 cuboctahedra, corners with four equivalent Co(3)Y3Zr2Co7 cuboctahedra, corners with five equivalent Co(1)Y3Zr2Co7 cuboctahedra, corners with six equivalent Co(2)Y2Zr3Co7 cuboctahedra, edges with two equivalent Co(1)Y3Zr2Co7 cuboctahedra, edges with two equivalent Co(3)Y3Zr2Co7 cuboctahedra, edges with two equivalent Co(5)Zr3Co6 cuboctahedra, edges with two equivalent Co(8)Zr3Co6 cuboctahedra, edges with four equivalent Co(2)Y2Zr3Co7 cuboctahedra,  a faceface with one Co(2)Y2Zr3Co7 cuboctahedra,  a faceface with one Co(5)Zr3Co6 cuboctahedra,  a faceface with one Co(8)Zr3Co6 cuboctahedra, faces with two equivalent Co(1)Y3Zr2Co7 cuboctahedra, faces with three equivalent Co(9)Y6Co6 cuboctahedra, and faces with eight equivalent Co(3)Y3Zr2Co7 cuboctahedra. In the eighth Co site, Co(4) is bonded to one Y(2), two equivalent Zr(1), two equivalent Zr(3), one Co(10), one Co(6), one Co(7), and four equivalent Co(4) atoms to form distorted CoYZr4Co7 cuboctahedra that share corners with two equivalent Co(10)Y3Zr3Co6 cuboctahedra, corners with two equivalent Co(6)Zr3Co6 cuboctahedra, corners with two equivalent Co(7)Zr3Co6 cuboctahedra, corners with four equivalent Co(4)YZr4Co7 cuboctahedra, corners with five equivalent Co(2)Y2Zr3Co7 cuboctahedra, corners with six equivalent Co(1)Y3Zr2Co7 cuboctahedra, edges with two equivalent Co(2)Y2Zr3Co7 cuboctahedra, edges with two equivalent Co(4)YZr4Co7 cuboctahedra, edges with two equivalent Co(6)Zr3Co6 cuboctahedra, edges with two equivalent Co(7)Zr3Co6 cuboctahedra, edges with four equivalent Co(1)Y3Zr2Co7 cuboctahedra,  a faceface with one Co(1)Y3Zr2Co7 cuboctahedra,  a faceface with one Co(6)Zr3Co6 cuboctahedra,  a faceface with one Co(7)Zr3Co6 cuboctahedra, faces with two equivalent Co(2)Y2Zr3Co7 cuboctahedra, faces with three equivalent Co(10)Y3Zr3Co6 cuboctahedra, and faces with eight equivalent Co(4)YZr4Co7 cuboctahedra. In the ninth Co site, Co(5) is bonded to three equivalent Zr(2), three equivalent Co(2), and three equivalent Co(3) atoms to form distorted CoZr3Co6 cuboctahedra that share corners with three equivalent Co(9)Y6Co6 cuboctahedra, corners with three equivalent Co(8)Zr3Co6 cuboctahedra, corners with six equivalent Co(2)Y2Zr3Co7 cuboctahedra, corners with six equivalent Co(3)Y3Zr2Co7 cuboctahedra, corners with six equivalent Co(5)Zr3Co6 cuboctahedra, edges with six equivalent Co(2)Y2Zr3Co7 cuboctahedra, edges with six equivalent Co(3)Y3Zr2Co7 cuboctahedra,  a faceface with one Co(10)Y3Zr3Co6 cuboctahedra, faces with three equivalent Co(2)Y2Zr3Co7 cuboctahedra, faces with three equivalent Co(3)Y3Zr2Co7 cuboctahedra, and faces with three equivalent Co(8)Zr3Co6 cuboctahedra. In the tenth Co site, Co(6) is bonded to three equivalent Zr(3), three equivalent Co(1), and three equivalent Co(4) atoms to form distorted CoZr3Co6 cuboctahedra that share corners with three equivalent Co(10)Y3Zr3Co6 cuboctahedra, corners with three equivalent Co(7)Zr3Co6 cuboctahedra, corners with six equivalent Co(1)Y3Zr2Co7 cuboctahedra, corners with six equivalent Co(4)YZr4Co7 cuboctahedra, corners with six equivalent Co(6)Zr3Co6 cuboctahedra, edges with six equivalent Co(1)Y3Zr2Co7 cuboctahedra, edges with six equivalent Co(4)YZr4Co7 cuboctahedra,  a faceface with one Co(9)Y6Co6 cuboctahedra, faces with three equivalent Co(1)Y3Zr2Co7 cuboctahedra, faces with three equivalent Co(4)YZr4Co7 cuboctahedra, and faces with three equivalent Co(7)Zr3Co6 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_YZrCo6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   16.400
_cell_length_b   16.400
_cell_length_c   16.400
_cell_angle_alpha   17.011
_cell_angle_beta   17.011
_cell_angle_gamma   17.011
_symmetry_Int_Tables_number   1
_cell_volume   329.361
_cell_formula_units_Z   3
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
  Y  Y0  1  0.431  0.431  0.431  1.0
  Y  Y1  1  0.930  0.930  0.930  1.0
  Y  Y2  1  0.069  0.069  0.069  1.0
  Zr  Zr3  1  0.568  0.568  0.568  1.0
  Zr  Zr4  1  1.000  1.000  1.000  1.0
  Zr  Zr5  1  0.500  0.500  0.500  1.0
  Co  Co6  1  0.960  0.960  0.462  1.0
  Co  Co7  1  0.460  0.460  0.959  1.0
  Co  Co8  1  0.462  0.960  0.960  1.0
  Co  Co9  1  0.959  0.460  0.460  1.0
  Co  Co10  1  0.960  0.462  0.960  1.0
  Co  Co11  1  0.460  0.959  0.460  1.0
  Co  Co12  1  0.540  0.540  0.038  1.0
  Co  Co13  1  0.041  0.041  0.540  1.0
  Co  Co14  1  0.038  0.540  0.540  1.0
  Co  Co15  1  0.540  0.041  0.041  1.0
  Co  Co16  1  0.540  0.038  0.540  1.0
  Co  Co17  1  0.041  0.540  0.041  1.0
  Co  Co18  1  0.333  0.333  0.333  1.0
  Co  Co19  1  0.834  0.834  0.834  1.0
  Co  Co20  1  0.167  0.167  0.167  1.0
  Co  Co21  1  0.666  0.666  0.666  1.0
  Co  Co22  1  0.750  0.750  0.750  1.0
  Co  Co23  1  0.250  0.250  0.250  1.0
[/CIF]
.
The crystal structure described by YZrCo6 is Frank-Kasper $\mu$ Phase-derived structured and crystallizes in the trigonal R3m space group. There are three inequivalent Y sites. In the first Y site, Y(1) is bonded in a 12-coordinate geometry to three equivalent Y(3), three equivalent Co(3), three equivalent Co(9), and six equivalent Co(1) atoms. In the second Y site, Y(2) is bonded in a 16-coordinate geometry to one Zr(2), three equivalent Zr(1), three equivalent Co(10), three equivalent Co(4), and six equivalent Co(2) atoms. In the third Y site, Y(3) is bonded in a 16-coordinate geometry to three equivalent Y(1), one Zr(2), three equivalent Co(1), three equivalent Co(9), and six equivalent Co(3) atoms. There are three inequivalent Zr sites. In the first Zr site, Zr(1) is bonded in a 15-coordinate geometry to three equivalent Y(2), three equivalent Co(10), three equivalent Co(2), and six equivalent Co(4) atoms. In the second Zr site, Zr(2) is bonded in a 6-coordinate geometry to one Y(2), one Y(3), three equivalent Co(5), three equivalent Co(8), six equivalent Co(2), and six equivalent Co(3) atoms. In the third Zr site, Zr(3) is bonded in a 6-coordinate geometry to three equivalent Co(6), three equivalent Co(7), six equivalent Co(1), and six equivalent Co(4) atoms. There are ten inequivalent Co sites. In the first Co site, Co(7) is bonded to three equivalent Zr(3), three equivalent Co(1), and three equivalent Co(4) atoms to form distorted CoZr3Co6 cuboctahedra that share corners with three equivalent Co(9)Y6Co6 cuboctahedra, corners with three equivalent Co(6)Zr3Co6 cuboctahedra, corners with six equivalent Co(1)Y3Zr2Co7 cuboctahedra, corners with six equivalent Co(4)YZr4Co7 cuboctahedra, corners with six equivalent Co(7)Zr3Co6 cuboctahedra, edges with six equivalent Co(1)Y3Zr2Co7 cuboctahedra, edges with six equivalent Co(4)YZr4Co7 cuboctahedra,  a faceface with one Co(10)Y3Zr3Co6 cuboctahedra, faces with three equivalent Co(1)Y3Zr2Co7 cuboctahedra, faces with three equivalent Co(4)YZr4Co7 cuboctahedra, and faces with three equivalent Co(6)Zr3Co6 cuboctahedra. In the second Co site, Co(8) is bonded to three equivalent Zr(2), three equivalent Co(2), and three equivalent Co(3) atoms to form distorted CoZr3Co6 cuboctahedra that share corners with three equivalent Co(10)Y3Zr3Co6 cuboctahedra, corners with three equivalent Co(5)Zr3Co6 cuboctahedra, corners with six equivalent Co(2)Y2Zr3Co7 cuboctahedra, corners with six equivalent Co(3)Y3Zr2Co7 cuboctahedra, corners with six equivalent Co(8)Zr3Co6 cuboctahedra, edges with six equivalent Co(2)Y2Zr3Co7 cuboctahedra, edges with six equivalent Co(3)Y3Zr2Co7 cuboctahedra,  a faceface with one Co(9)Y6Co6 cuboctahedra, faces with three equivalent Co(2)Y2Zr3Co7 cuboctahedra, faces with three equivalent Co(3)Y3Zr2Co7 cuboctahedra, and faces with three equivalent Co(5)Zr3Co6 cuboctahedra. In the third Co site, Co(9) is bonded to three equivalent Y(1), three equivalent Y(3), three equivalent Co(1), and three equivalent Co(3) atoms to form CoY6Co6 cuboctahedra that share corners with three equivalent Co(5)Zr3Co6 cuboctahedra, corners with three equivalent Co(7)Zr3Co6 cuboctahedra, corners with six equivalent Co(1)Y3Zr2Co7 cuboctahedra, corners with six equivalent Co(3)Y3Zr2Co7 cuboctahedra, edges with six equivalent Co(9)Y6Co6 cuboctahedra,  a faceface with one Co(6)Zr3Co6 cuboctahedra,  a faceface with one Co(8)Zr3Co6 cuboctahedra, faces with nine equivalent Co(1)Y3Zr2Co7 cuboctahedra, and faces with nine equivalent Co(3)Y3Zr2Co7 cuboctahedra. In the fourth Co site, Co(10) is bonded to three equivalent Y(2), three equivalent Zr(1), three equivalent Co(2), and three equivalent Co(4) atoms to form CoY3Zr3Co6 cuboctahedra that share corners with three equivalent Co(6)Zr3Co6 cuboctahedra, corners with three equivalent Co(8)Zr3Co6 cuboctahedra, corners with six equivalent Co(2)Y2Zr3Co7 cuboctahedra, corners with six equivalent Co(4)YZr4Co7 cuboctahedra, edges with six equivalent Co(10)Y3Zr3Co6 cuboctahedra,  a faceface with one Co(5)Zr3Co6 cuboctahedra,  a faceface with one Co(7)Zr3Co6 cuboctahedra, faces with nine equivalent Co(2)Y2Zr3Co7 cuboctahedra, and faces with nine equivalent Co(4)YZr4Co7 cuboctahedra. In the fifth Co site, Co(1) is bonded to one Y(3), two equivalent Y(1), two equivalent Zr(3), one Co(6), one Co(7), one Co(9), and four equivalent Co(1) atoms to form CoY3Zr2Co7 cuboctahedra that share corners with two equivalent Co(9)Y6Co6 cuboctahedra, corners with two equivalent Co(6)Zr3Co6 cuboctahedra, corners with two equivalent Co(7)Zr3Co6 cuboctahedra, corners with four equivalent Co(1)Y3Zr2Co7 cuboctahedra, corners with five equivalent Co(3)Y3Zr2Co7 cuboctahedra, corners with six equivalent Co(4)YZr4Co7 cuboctahedra, edges with two equivalent Co(1)Y3Zr2Co7 cuboctahedra, edges with two equivalent Co(3)Y3Zr2Co7 cuboctahedra, edges with two equivalent Co(6)Zr3Co6 cuboctahedra, edges with two equivalent Co(7)Zr3Co6 cuboctahedra, edges with four equivalent Co(4)YZr4Co7 cuboctahedra,  a faceface with one Co(4)YZr4Co7 cuboctahedra,  a faceface with one Co(6)Zr3Co6 cuboctahedra,  a faceface with one Co(7)Zr3Co6 cuboctahedra, faces with two equivalent Co(3)Y3Zr2Co7 cuboctahedra, faces with three equivalent Co(9)Y6Co6 cuboctahedra, and faces with eight equivalent Co(1)Y3Zr2Co7 cuboctahedra. In the sixth Co site, Co(2) is bonded to two equivalent Y(2), one Zr(1), two equivalent Zr(2), one Co(10), one Co(5), one Co(8), and four equivalent Co(2) atoms to form distorted CoY2Zr3Co7 cuboctahedra that share corners with two equivalent Co(10)Y3Zr3Co6 cuboctahedra, corners with two equivalent Co(5)Zr3Co6 cuboctahedra, corners with two equivalent Co(8)Zr3Co6 cuboctahedra, corners with four equivalent Co(2)Y2Zr3Co7 cuboctahedra, corners with five equivalent Co(4)YZr4Co7 cuboctahedra, corners with six equivalent Co(3)Y3Zr2Co7 cuboctahedra, edges with two equivalent Co(2)Y2Zr3Co7 cuboctahedra, edges with two equivalent Co(4)YZr4Co7 cuboctahedra, edges with two equivalent Co(5)Zr3Co6 cuboctahedra, edges with two equivalent Co(8)Zr3Co6 cuboctahedra, edges with four equivalent Co(3)Y3Zr2Co7 cuboctahedra,  a faceface with one Co(3)Y3Zr2Co7 cuboctahedra,  a faceface with one Co(5)Zr3Co6 cuboctahedra,  a faceface with one Co(8)Zr3Co6 cuboctahedra, faces with two equivalent Co(4)YZr4Co7 cuboctahedra, faces with three equivalent Co(10)Y3Zr3Co6 cuboctahedra, and faces with eight equivalent Co(2)Y2Zr3Co7 cuboctahedra. In the seventh Co site, Co(3) is bonded to one Y(1), two equivalent Y(3), two equivalent Zr(2), one Co(5), one Co(8), one Co(9), and four equivalent Co(3) atoms to form CoY3Zr2Co7 cuboctahedra that share corners with two equivalent Co(9)Y6Co6 cuboctahedra, corners with two equivalent Co(5)Zr3Co6 cuboctahedra, corners with two equivalent Co(8)Zr3Co6 cuboctahedra, corners with four equivalent Co(3)Y3Zr2Co7 cuboctahedra, corners with five equivalent Co(1)Y3Zr2Co7 cuboctahedra, corners with six equivalent Co(2)Y2Zr3Co7 cuboctahedra, edges with two equivalent Co(1)Y3Zr2Co7 cuboctahedra, edges with two equivalent Co(3)Y3Zr2Co7 cuboctahedra, edges with two equivalent Co(5)Zr3Co6 cuboctahedra, edges with two equivalent Co(8)Zr3Co6 cuboctahedra, edges with four equivalent Co(2)Y2Zr3Co7 cuboctahedra,  a faceface with one Co(2)Y2Zr3Co7 cuboctahedra,  a faceface with one Co(5)Zr3Co6 cuboctahedra,  a faceface with one Co(8)Zr3Co6 cuboctahedra, faces with two equivalent Co(1)Y3Zr2Co7 cuboctahedra, faces with three equivalent Co(9)Y6Co6 cuboctahedra, and faces with eight equivalent Co(3)Y3Zr2Co7 cuboctahedra. In the eighth Co site, Co(4) is bonded to one Y(2), two equivalent Zr(1), two equivalent Zr(3), one Co(10), one Co(6), one Co(7), and four equivalent Co(4) atoms to form distorted CoYZr4Co7 cuboctahedra that share corners with two equivalent Co(10)Y3Zr3Co6 cuboctahedra, corners with two equivalent Co(6)Zr3Co6 cuboctahedra, corners with two equivalent Co(7)Zr3Co6 cuboctahedra, corners with four equivalent Co(4)YZr4Co7 cuboctahedra, corners with five equivalent Co(2)Y2Zr3Co7 cuboctahedra, corners with six equivalent Co(1)Y3Zr2Co7 cuboctahedra, edges with two equivalent Co(2)Y2Zr3Co7 cuboctahedra, edges with two equivalent Co(4)YZr4Co7 cuboctahedra, edges with two equivalent Co(6)Zr3Co6 cuboctahedra, edges with two equivalent Co(7)Zr3Co6 cuboctahedra, edges with four equivalent Co(1)Y3Zr2Co7 cuboctahedra,  a faceface with one Co(1)Y3Zr2Co7 cuboctahedra,  a faceface with one Co(6)Zr3Co6 cuboctahedra,  a faceface with one Co(7)Zr3Co6 cuboctahedra, faces with two equivalent Co(2)Y2Zr3Co7 cuboctahedra, faces with three equivalent Co(10)Y3Zr3Co6 cuboctahedra, and faces with eight equivalent Co(4)YZr4Co7 cuboctahedra. In the ninth Co site, Co(5) is bonded to three equivalent Zr(2), three equivalent Co(2), and three equivalent Co(3) atoms to form distorted CoZr3Co6 cuboctahedra that share corners with three equivalent Co(9)Y6Co6 cuboctahedra, corners with three equivalent Co(8)Zr3Co6 cuboctahedra, corners with six equivalent Co(2)Y2Zr3Co7 cuboctahedra, corners with six equivalent Co(3)Y3Zr2Co7 cuboctahedra, corners with six equivalent Co(5)Zr3Co6 cuboctahedra, edges with six equivalent Co(2)Y2Zr3Co7 cuboctahedra, edges with six equivalent Co(3)Y3Zr2Co7 cuboctahedra,  a faceface with one Co(10)Y3Zr3Co6 cuboctahedra, faces with three equivalent Co(2)Y2Zr3Co7 cuboctahedra, faces with three equivalent Co(3)Y3Zr2Co7 cuboctahedra, and faces with three equivalent Co(8)Zr3Co6 cuboctahedra. In the tenth Co site, Co(6) is bonded to three equivalent Zr(3), three equivalent Co(1), and three equivalent Co(4) atoms to form distorted CoZr3Co6 cuboctahedra that share corners with three equivalent Co(10)Y3Zr3Co6 cuboctahedra, corners with three equivalent Co(7)Zr3Co6 cuboctahedra, corners with six equivalent Co(1)Y3Zr2Co7 cuboctahedra, corners with six equivalent Co(4)YZr4Co7 cuboctahedra, corners with six equivalent Co(6)Zr3Co6 cuboctahedra, edges with six equivalent Co(1)Y3Zr2Co7 cuboctahedra, edges with six equivalent Co(4)YZr4Co7 cuboctahedra,  a faceface with one Co(9)Y6Co6 cuboctahedra, faces with three equivalent Co(1)Y3Zr2Co7 cuboctahedra, faces with three equivalent Co(4)YZr4Co7 cuboctahedra, and faces with three equivalent Co(7)Zr3Co6 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_YZrCo6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   16.400
_cell_length_b   16.400
_cell_length_c   16.400
_cell_angle_alpha   17.011
_cell_angle_beta   17.011
_cell_angle_gamma   17.011
_symmetry_Int_Tables_number   1
_cell_volume   329.361
_cell_formula_units_Z   3
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
  Y  Y0  1  0.431  0.431  0.431  1.0
  Y  Y1  1  0.930  0.930  0.930  1.0
  Y  Y2  1  0.069  0.069  0.069  1.0
  Zr  Zr3  1  0.568  0.568  0.568  1.0
  Zr  Zr4  1  1.000  1.000  1.000  1.0
  Zr  Zr5  1  0.500  0.500  0.500  1.0
  Co  Co6  1  0.960  0.960  0.462  1.0
  Co  Co7  1  0.460  0.460  0.959  1.0
  Co  Co8  1  0.462  0.960  0.960  1.0
  Co  Co9  1  0.959  0.460  0.460  1.0
  Co  Co10  1  0.960  0.462  0.960  1.0
  Co  Co11  1  0.460  0.959  0.460  1.0
  Co  Co12  1  0.540  0.540  0.038  1.0
  Co  Co13  1  0.041  0.041  0.540  1.0
  Co  Co14  1  0.038  0.540  0.540  1.0
  Co  Co15  1  0.540  0.041  0.041  1.0
  Co  Co16  1  0.540  0.038  0.540  1.0
  Co  Co17  1  0.041  0.540  0.041  1.0
  Co  Co18  1  0.333  0.333  0.333  1.0
  Co  Co19  1  0.834  0.834  0.834  1.0
  Co  Co20  1  0.167  0.167  0.167  1.0
  Co  Co21  1  0.666  0.666  0.666  1.0
  Co  Co22  1  0.750  0.750  0.750  1.0
  Co  Co23  1  0.250  0.250  0.250  1.0
[/CIF]
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