The material structure described by YMo2Fe5Co5 crystallizes in the triclinic P-1 space group. Y(1) is bonded in a 20-coordinate geometry to two equivalent Mo(1), two equivalent Fe(1), two equivalent Fe(2), two equivalent Fe(3), two equivalent Fe(4), two equivalent Co(3), four equivalent Co(1), and four equivalent Co(2) atoms. Mo(1) is bonded in a 14-coordinate geometry to one Y(1), one Mo(1), one Fe(2), one Fe(3), one Fe(4), four equivalent Fe(1), one Co(3), two equivalent Co(1), and two equivalent Co(2) atoms. There are four inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 14-coordinate geometry to one Y(1), four equivalent Mo(1), one Fe(1), one Fe(2), one Fe(3), one Fe(4), one Co(3), two equivalent Co(1), and two equivalent Co(2) atoms. In the second Fe site, Fe(2) is bonded to two equivalent Y(1), two equivalent Mo(1), two equivalent Fe(1), two equivalent Co(1), two equivalent Co(2), and two equivalent Co(3) atoms to form distorted FeY2Fe2Co6Mo2 cuboctahedra that share corners with two equivalent Fe(3)Y2Fe4Co4Mo2 cuboctahedra, corners with two equivalent Fe(4)Y2Fe4Co4Mo2 cuboctahedra, corners with two equivalent Co(3)Y2Fe4Co4Mo2 cuboctahedra, corners with four equivalent Fe(2)Y2Fe2Co6Mo2 cuboctahedra, corners with four equivalent Co(1)Y2Fe5Co3Mo2 cuboctahedra, edges with two equivalent Fe(3)Y2Fe4Co4Mo2 cuboctahedra, edges with two equivalent Fe(4)Y2Fe4Co4Mo2 cuboctahedra, edges with two equivalent Co(1)Y2Fe5Co3Mo2 cuboctahedra, faces with two equivalent Fe(3)Y2Fe4Co4Mo2 cuboctahedra, faces with two equivalent Fe(4)Y2Fe4Co4Mo2 cuboctahedra, faces with two equivalent Co(3)Y2Fe4Co4Mo2 cuboctahedra, and faces with four equivalent Co(1)Y2Fe5Co3Mo2 cuboctahedra. In the third Fe site, Fe(3) is bonded to two equivalent Y(1), two equivalent Mo(1), two equivalent Fe(1), two equivalent Fe(4), two equivalent Co(1), and two equivalent Co(2) atoms to form distorted FeY2Fe4Co4Mo2 cuboctahedra that share corners with two equivalent Fe(2)Y2Fe2Co6Mo2 cuboctahedra, corners with two equivalent Fe(4)Y2Fe4Co4Mo2 cuboctahedra, corners with two equivalent Co(3)Y2Fe4Co4Mo2 cuboctahedra, corners with four equivalent Fe(3)Y2Fe4Co4Mo2 cuboctahedra, corners with four equivalent Co(1)Y2Fe5Co3Mo2 cuboctahedra, edges with two equivalent Fe(2)Y2Fe2Co6Mo2 cuboctahedra, edges with two equivalent Co(3)Y2Fe4Co4Mo2 cuboctahedra, edges with two equivalent Co(1)Y2Fe5Co3Mo2 cuboctahedra, faces with two equivalent Fe(2)Y2Fe2Co6Mo2 cuboctahedra, faces with two equivalent Fe(4)Y2Fe4Co4Mo2 cuboctahedra, faces with two equivalent Co(3)Y2Fe4Co4Mo2 cuboctahedra, and faces with four equivalent Co(1)Y2Fe5Co3Mo2 cuboctahedra. In the fourth Fe site, Fe(4) is bonded to two equivalent Y(1), two equivalent Mo(1), two equivalent Fe(1), two equivalent Fe(3), two equivalent Co(1), and two equivalent Co(2) atoms to form distorted FeY2Fe4Co4Mo2 cuboctahedra that share corners with two equivalent Fe(2)Y2Fe2Co6Mo2 cuboctahedra, corners with two equivalent Fe(3)Y2Fe4Co4Mo2 cuboctahedra, corners with two equivalent Co(3)Y2Fe4Co4Mo2 cuboctahedra, corners with four equivalent Fe(4)Y2Fe4Co4Mo2 cuboctahedra, corners with four equivalent Co(1)Y2Fe5Co3Mo2 cuboctahedra, edges with two equivalent Fe(2)Y2Fe2Co6Mo2 cuboctahedra, edges with two equivalent Co(3)Y2Fe4Co4Mo2 cuboctahedra, edges with two equivalent Co(1)Y2Fe5Co3Mo2 cuboctahedra, faces with two equivalent Fe(2)Y2Fe2Co6Mo2 cuboctahedra, faces with two equivalent Fe(3)Y2Fe4Co4Mo2 cuboctahedra, faces with two equivalent Co(3)Y2Fe4Co4Mo2 cuboctahedra, and faces with four equivalent Co(1)Y2Fe5Co3Mo2 cuboctahedra. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent Y(1), two equivalent Mo(1), one Fe(2), one Fe(3), one Fe(4), two equivalent Fe(1), one Co(3), and two equivalent Co(2) atoms to form distorted CoY2Fe5Co3Mo2 cuboctahedra that share corners with two equivalent Fe(2)Y2Fe2Co6Mo2 cuboctahedra, corners with two equivalent Fe(3)Y2Fe4Co4Mo2 cuboctahedra, corners with two equivalent Fe(4)Y2Fe4Co4Mo2 cuboctahedra, corners with two equivalent Co(3)Y2Fe4Co4Mo2 cuboctahedra, corners with six equivalent Co(1)Y2Fe5Co3Mo2 cuboctahedra,  an edgeedge with one Fe(2)Y2Fe2Co6Mo2 cuboctahedra,  an edgeedge with one Fe(3)Y2Fe4Co4Mo2 cuboctahedra,  an edgeedge with one Fe(4)Y2Fe4Co4Mo2 cuboctahedra,  an edgeedge with one Co(3)Y2Fe4Co4Mo2 cuboctahedra, edges with three equivalent Co(1)Y2Fe5Co3Mo2 cuboctahedra,  a faceface with one Co(1)Y2Fe5Co3Mo2 cuboctahedra, faces with two equivalent Fe(2)Y2Fe2Co6Mo2 cuboctahedra, faces with two equivalent Fe(3)Y2Fe4Co4Mo2 cuboctahedra, faces with two equivalent Fe(4)Y2Fe4Co4Mo2 cuboctahedra, and faces with two equivalent Co(3)Y2Fe4Co4Mo2 cuboctahedra. In the second Co site, Co(2) is bonded in a 12-coordinate geometry to two equivalent Y(1), two equivalent Mo(1), one Fe(2), one Fe(3), one Fe(4), two equivalent Fe(1), one Co(3), and two equivalent Co(1) atoms. In the third Co site, Co(3) is bonded to two equivalent Y(1), two equivalent Mo(1), two equivalent Fe(1), two equivalent Fe(2), two equivalent Co(1), and two equivalent Co(2) atoms to form distorted CoY2Fe4Co4Mo2 cuboctahedra that share corners with two equivalent Fe(2)Y2Fe2Co6Mo2 cuboctahedra, corners with two equivalent Fe(3)Y2Fe4Co4Mo2 cuboctahedra, corners with two equivalent Fe(4)Y2Fe4Co4Mo2 cuboctahedra, corners with four equivalent Co(3)Y2Fe4Co4Mo2 cuboctahedra, corners with four equivalent Co(1)Y2Fe5Co3Mo2 cuboctahedra, edges with two equivalent Fe(3)Y2Fe4Co4Mo2 cuboctahedra, edges with two equivalent Fe(4)Y2Fe4Co4Mo2 cuboctahedra, edges with two equivalent Co(1)Y2Fe5Co3Mo2 cuboctahedra, faces with two equivalent Fe(2)Y2Fe2Co6Mo2 cuboctahedra, faces with two equivalent Fe(3)Y2Fe4Co4Mo2 cuboctahedra, faces with two equivalent Fe(4)Y2Fe4Co4Mo2 cuboctahedra, and faces with four equivalent Co(1)Y2Fe5Co3Mo2 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_YFe5Co5Mo2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.692
_cell_length_b   6.470
_cell_length_c   6.489
_cell_angle_alpha   97.684
_cell_angle_beta   111.684
_cell_angle_gamma   68.759
_symmetry_Int_Tables_number   1
_cell_volume   170.632
_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
  Y  Y0  1  0.000  0.000  0.000  1.0
  Fe  Fe1  1  0.641  0.357  0.641  1.0
  Fe  Fe2  1  0.359  0.643  0.359  1.0
  Fe  Fe3  1  0.000  0.000  0.500  1.0
  Fe  Fe4  1  0.500  0.500  0.000  1.0
  Fe  Fe5  1  0.000  0.500  0.000  1.0
  Co  Co6  1  0.720  0.780  0.219  1.0
  Co  Co7  1  0.280  0.220  0.781  1.0
  Co  Co8  1  0.499  0.777  0.776  1.0
  Co  Co9  1  0.501  0.223  0.224  1.0
  Co  Co10  1  0.500  0.000  0.500  1.0
  Mo  Mo11  1  0.002  0.356  0.358  1.0
  Mo  Mo12  1  0.998  0.644  0.642  1.0
[/CIF]
.
The material structure described by YMo2Fe5Co5 crystallizes in the triclinic P-1 space group. Y(1) is bonded in a 20-coordinate geometry to two equivalent Mo(1), two equivalent Fe(1), two equivalent Fe(2), two equivalent Fe(3), two equivalent Fe(4), two equivalent Co(3), four equivalent Co(1), and four equivalent Co(2) atoms. Mo(1) is bonded in a 14-coordinate geometry to one Y(1), one Mo(1), one Fe(2), one Fe(3), one Fe(4), four equivalent Fe(1), one Co(3), two equivalent Co(1), and two equivalent Co(2) atoms. There are four inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 14-coordinate geometry to one Y(1), four equivalent Mo(1), one Fe(1), one Fe(2), one Fe(3), one Fe(4), one Co(3), two equivalent Co(1), and two equivalent Co(2) atoms. In the second Fe site, Fe(2) is bonded to two equivalent Y(1), two equivalent Mo(1), two equivalent Fe(1), two equivalent Co(1), two equivalent Co(2), and two equivalent Co(3) atoms to form distorted FeY2Fe2Co6Mo2 cuboctahedra that share corners with two equivalent Fe(3)Y2Fe4Co4Mo2 cuboctahedra, corners with two equivalent Fe(4)Y2Fe4Co4Mo2 cuboctahedra, corners with two equivalent Co(3)Y2Fe4Co4Mo2 cuboctahedra, corners with four equivalent Fe(2)Y2Fe2Co6Mo2 cuboctahedra, corners with four equivalent Co(1)Y2Fe5Co3Mo2 cuboctahedra, edges with two equivalent Fe(3)Y2Fe4Co4Mo2 cuboctahedra, edges with two equivalent Fe(4)Y2Fe4Co4Mo2 cuboctahedra, edges with two equivalent Co(1)Y2Fe5Co3Mo2 cuboctahedra, faces with two equivalent Fe(3)Y2Fe4Co4Mo2 cuboctahedra, faces with two equivalent Fe(4)Y2Fe4Co4Mo2 cuboctahedra, faces with two equivalent Co(3)Y2Fe4Co4Mo2 cuboctahedra, and faces with four equivalent Co(1)Y2Fe5Co3Mo2 cuboctahedra. In the third Fe site, Fe(3) is bonded to two equivalent Y(1), two equivalent Mo(1), two equivalent Fe(1), two equivalent Fe(4), two equivalent Co(1), and two equivalent Co(2) atoms to form distorted FeY2Fe4Co4Mo2 cuboctahedra that share corners with two equivalent Fe(2)Y2Fe2Co6Mo2 cuboctahedra, corners with two equivalent Fe(4)Y2Fe4Co4Mo2 cuboctahedra, corners with two equivalent Co(3)Y2Fe4Co4Mo2 cuboctahedra, corners with four equivalent Fe(3)Y2Fe4Co4Mo2 cuboctahedra, corners with four equivalent Co(1)Y2Fe5Co3Mo2 cuboctahedra, edges with two equivalent Fe(2)Y2Fe2Co6Mo2 cuboctahedra, edges with two equivalent Co(3)Y2Fe4Co4Mo2 cuboctahedra, edges with two equivalent Co(1)Y2Fe5Co3Mo2 cuboctahedra, faces with two equivalent Fe(2)Y2Fe2Co6Mo2 cuboctahedra, faces with two equivalent Fe(4)Y2Fe4Co4Mo2 cuboctahedra, faces with two equivalent Co(3)Y2Fe4Co4Mo2 cuboctahedra, and faces with four equivalent Co(1)Y2Fe5Co3Mo2 cuboctahedra. In the fourth Fe site, Fe(4) is bonded to two equivalent Y(1), two equivalent Mo(1), two equivalent Fe(1), two equivalent Fe(3), two equivalent Co(1), and two equivalent Co(2) atoms to form distorted FeY2Fe4Co4Mo2 cuboctahedra that share corners with two equivalent Fe(2)Y2Fe2Co6Mo2 cuboctahedra, corners with two equivalent Fe(3)Y2Fe4Co4Mo2 cuboctahedra, corners with two equivalent Co(3)Y2Fe4Co4Mo2 cuboctahedra, corners with four equivalent Fe(4)Y2Fe4Co4Mo2 cuboctahedra, corners with four equivalent Co(1)Y2Fe5Co3Mo2 cuboctahedra, edges with two equivalent Fe(2)Y2Fe2Co6Mo2 cuboctahedra, edges with two equivalent Co(3)Y2Fe4Co4Mo2 cuboctahedra, edges with two equivalent Co(1)Y2Fe5Co3Mo2 cuboctahedra, faces with two equivalent Fe(2)Y2Fe2Co6Mo2 cuboctahedra, faces with two equivalent Fe(3)Y2Fe4Co4Mo2 cuboctahedra, faces with two equivalent Co(3)Y2Fe4Co4Mo2 cuboctahedra, and faces with four equivalent Co(1)Y2Fe5Co3Mo2 cuboctahedra. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent Y(1), two equivalent Mo(1), one Fe(2), one Fe(3), one Fe(4), two equivalent Fe(1), one Co(3), and two equivalent Co(2) atoms to form distorted CoY2Fe5Co3Mo2 cuboctahedra that share corners with two equivalent Fe(2)Y2Fe2Co6Mo2 cuboctahedra, corners with two equivalent Fe(3)Y2Fe4Co4Mo2 cuboctahedra, corners with two equivalent Fe(4)Y2Fe4Co4Mo2 cuboctahedra, corners with two equivalent Co(3)Y2Fe4Co4Mo2 cuboctahedra, corners with six equivalent Co(1)Y2Fe5Co3Mo2 cuboctahedra,  an edgeedge with one Fe(2)Y2Fe2Co6Mo2 cuboctahedra,  an edgeedge with one Fe(3)Y2Fe4Co4Mo2 cuboctahedra,  an edgeedge with one Fe(4)Y2Fe4Co4Mo2 cuboctahedra,  an edgeedge with one Co(3)Y2Fe4Co4Mo2 cuboctahedra, edges with three equivalent Co(1)Y2Fe5Co3Mo2 cuboctahedra,  a faceface with one Co(1)Y2Fe5Co3Mo2 cuboctahedra, faces with two equivalent Fe(2)Y2Fe2Co6Mo2 cuboctahedra, faces with two equivalent Fe(3)Y2Fe4Co4Mo2 cuboctahedra, faces with two equivalent Fe(4)Y2Fe4Co4Mo2 cuboctahedra, and faces with two equivalent Co(3)Y2Fe4Co4Mo2 cuboctahedra. In the second Co site, Co(2) is bonded in a 12-coordinate geometry to two equivalent Y(1), two equivalent Mo(1), one Fe(2), one Fe(3), one Fe(4), two equivalent Fe(1), one Co(3), and two equivalent Co(1) atoms. In the third Co site, Co(3) is bonded to two equivalent Y(1), two equivalent Mo(1), two equivalent Fe(1), two equivalent Fe(2), two equivalent Co(1), and two equivalent Co(2) atoms to form distorted CoY2Fe4Co4Mo2 cuboctahedra that share corners with two equivalent Fe(2)Y2Fe2Co6Mo2 cuboctahedra, corners with two equivalent Fe(3)Y2Fe4Co4Mo2 cuboctahedra, corners with two equivalent Fe(4)Y2Fe4Co4Mo2 cuboctahedra, corners with four equivalent Co(3)Y2Fe4Co4Mo2 cuboctahedra, corners with four equivalent Co(1)Y2Fe5Co3Mo2 cuboctahedra, edges with two equivalent Fe(3)Y2Fe4Co4Mo2 cuboctahedra, edges with two equivalent Fe(4)Y2Fe4Co4Mo2 cuboctahedra, edges with two equivalent Co(1)Y2Fe5Co3Mo2 cuboctahedra, faces with two equivalent Fe(2)Y2Fe2Co6Mo2 cuboctahedra, faces with two equivalent Fe(3)Y2Fe4Co4Mo2 cuboctahedra, faces with two equivalent Fe(4)Y2Fe4Co4Mo2 cuboctahedra, and faces with four equivalent Co(1)Y2Fe5Co3Mo2 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_YFe5Co5Mo2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.692
_cell_length_b   6.470
_cell_length_c   6.489
_cell_angle_alpha   97.684
_cell_angle_beta   111.684
_cell_angle_gamma   68.759
_symmetry_Int_Tables_number   1
_cell_volume   170.632
_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
  Y  Y0  1  0.000  0.000  0.000  1.0
  Fe  Fe1  1  0.641  0.357  0.641  1.0
  Fe  Fe2  1  0.359  0.643  0.359  1.0
  Fe  Fe3  1  0.000  0.000  0.500  1.0
  Fe  Fe4  1  0.500  0.500  0.000  1.0
  Fe  Fe5  1  0.000  0.500  0.000  1.0
  Co  Co6  1  0.720  0.780  0.219  1.0
  Co  Co7  1  0.280  0.220  0.781  1.0
  Co  Co8  1  0.499  0.777  0.776  1.0
  Co  Co9  1  0.501  0.223  0.224  1.0
  Co  Co10  1  0.500  0.000  0.500  1.0
  Mo  Mo11  1  0.002  0.356  0.358  1.0
  Mo  Mo12  1  0.998  0.644  0.642  1.0
[/CIF]
.