The compound described by Y2Co3Si crystallizes in the trigonal R-3m space group. Y(1) is bonded in a 16-coordinate geometry to four equivalent Y(1), nine equivalent Co(1), and three equivalent Si(1) atoms. Co(1) is bonded to six equivalent Y(1), four equivalent Co(1), and two equivalent Si(1) atoms to form CoY6Co4Si2 cuboctahedra that share corners with four equivalent Si(1)Y6Co6 cuboctahedra, corners with fourteen equivalent Co(1)Y6Co4Si2 cuboctahedra, edges with six equivalent Co(1)Y6Co4Si2 cuboctahedra, faces with six equivalent Si(1)Y6Co6 cuboctahedra, and faces with twelve equivalent Co(1)Y6Co4Si2 cuboctahedra. Si(1) is bonded to six equivalent Y(1) and six equivalent Co(1) atoms to form SiY6Co6 cuboctahedra that share corners with six equivalent Si(1)Y6Co6 cuboctahedra, corners with twelve equivalent Co(1)Y6Co4Si2 cuboctahedra, edges with six equivalent Si(1)Y6Co6 cuboctahedra, and faces with eighteen equivalent Co(1)Y6Co4Si2 cuboctahedra. is represented by the CIF file [CIF]
data_Y2Co3Si
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.907
_cell_length_b   4.907
_cell_length_c   4.907
_cell_angle_alpha   64.774
_cell_angle_beta   64.774
_cell_angle_gamma   64.774
_symmetry_Int_Tables_number   1
_cell_volume   92.256
_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  0.627  0.627  0.627  1.0
  Y  Y1  1  0.373  0.373  0.373  1.0
  Co  Co2  1  0.000  0.500  0.000  1.0
  Co  Co3  1  0.500  0.000  0.000  1.0
  Co  Co4  1  0.000  0.000  0.500  1.0
  Si  Si5  1  0.000  0.000  0.000  1.0
[/CIF]
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The compound described by Y2Co3Si crystallizes in the trigonal R-3m space group. Y(1) is bonded in a 16-coordinate geometry to four equivalent Y(1), nine equivalent Co(1), and three equivalent Si(1) atoms. Co(1) is bonded to six equivalent Y(1), four equivalent Co(1), and two equivalent Si(1) atoms to form CoY6Co4Si2 cuboctahedra that share corners with four equivalent Si(1)Y6Co6 cuboctahedra, corners with fourteen equivalent Co(1)Y6Co4Si2 cuboctahedra, edges with six equivalent Co(1)Y6Co4Si2 cuboctahedra, faces with six equivalent Si(1)Y6Co6 cuboctahedra, and faces with twelve equivalent Co(1)Y6Co4Si2 cuboctahedra. Si(1) is bonded to six equivalent Y(1) and six equivalent Co(1) atoms to form SiY6Co6 cuboctahedra that share corners with six equivalent Si(1)Y6Co6 cuboctahedra, corners with twelve equivalent Co(1)Y6Co4Si2 cuboctahedra, edges with six equivalent Si(1)Y6Co6 cuboctahedra, and faces with eighteen equivalent Co(1)Y6Co4Si2 cuboctahedra. is represented by the CIF file [CIF]
data_Y2Co3Si
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.907
_cell_length_b   4.907
_cell_length_c   4.907
_cell_angle_alpha   64.774
_cell_angle_beta   64.774
_cell_angle_gamma   64.774
_symmetry_Int_Tables_number   1
_cell_volume   92.256
_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  0.627  0.627  0.627  1.0
  Y  Y1  1  0.373  0.373  0.373  1.0
  Co  Co2  1  0.000  0.500  0.000  1.0
  Co  Co3  1  0.500  0.000  0.000  1.0
  Co  Co4  1  0.000  0.000  0.500  1.0
  Si  Si5  1  0.000  0.000  0.000  1.0
[/CIF]
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