The crystal structure described by Co3Si is Magnesium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. Co(1) is bonded to eight equivalent Co(1) and four equivalent Si(1) atoms to form CoCo8Si4 cuboctahedra that share corners with four equivalent Si(1)Co12 cuboctahedra, corners with fourteen equivalent Co(1)Co8Si4 cuboctahedra, edges with six equivalent Si(1)Co12 cuboctahedra, edges with twelve equivalent Co(1)Co8Si4 cuboctahedra, faces with four equivalent Si(1)Co12 cuboctahedra, and faces with sixteen equivalent Co(1)Co8Si4 cuboctahedra. Si(1) is bonded to twelve equivalent Co(1) atoms to form SiCo12 cuboctahedra that share corners with six equivalent Si(1)Co12 cuboctahedra, corners with twelve equivalent Co(1)Co8Si4 cuboctahedra, edges with eighteen equivalent Co(1)Co8Si4 cuboctahedra, faces with eight equivalent Si(1)Co12 cuboctahedra, and faces with twelve equivalent Co(1)Co8Si4 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Co3Si
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.976
_cell_length_b   4.976
_cell_length_c   3.973
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   85.206
_cell_formula_units_Z   2
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
  Co  Co0  1  0.833  0.167  0.250  1.0
  Co  Co1  1  0.833  0.665  0.250  1.0
  Co  Co2  1  0.335  0.167  0.250  1.0
  Co  Co3  1  0.167  0.833  0.750  1.0
  Co  Co4  1  0.167  0.335  0.750  1.0
  Co  Co5  1  0.665  0.833  0.750  1.0
  Si  Si6  1  0.333  0.667  0.250  1.0
  Si  Si7  1  0.667  0.333  0.750  1.0
[/CIF]
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The crystal structure described by Co3Si is Magnesium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. Co(1) is bonded to eight equivalent Co(1) and four equivalent Si(1) atoms to form CoCo8Si4 cuboctahedra that share corners with four equivalent Si(1)Co12 cuboctahedra, corners with fourteen equivalent Co(1)Co8Si4 cuboctahedra, edges with six equivalent Si(1)Co12 cuboctahedra, edges with twelve equivalent Co(1)Co8Si4 cuboctahedra, faces with four equivalent Si(1)Co12 cuboctahedra, and faces with sixteen equivalent Co(1)Co8Si4 cuboctahedra. Si(1) is bonded to twelve equivalent Co(1) atoms to form SiCo12 cuboctahedra that share corners with six equivalent Si(1)Co12 cuboctahedra, corners with twelve equivalent Co(1)Co8Si4 cuboctahedra, edges with eighteen equivalent Co(1)Co8Si4 cuboctahedra, faces with eight equivalent Si(1)Co12 cuboctahedra, and faces with twelve equivalent Co(1)Co8Si4 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Co3Si
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.976
_cell_length_b   4.976
_cell_length_c   3.973
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   85.206
_cell_formula_units_Z   2
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
  Co  Co0  1  0.833  0.167  0.250  1.0
  Co  Co1  1  0.833  0.665  0.250  1.0
  Co  Co2  1  0.335  0.167  0.250  1.0
  Co  Co3  1  0.167  0.833  0.750  1.0
  Co  Co4  1  0.167  0.335  0.750  1.0
  Co  Co5  1  0.665  0.833  0.750  1.0
  Si  Si6  1  0.333  0.667  0.250  1.0
  Si  Si7  1  0.667  0.333  0.750  1.0
[/CIF]
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