The material structure described by Co6Ga2C crystallizes in the tetragonal P4/mmm space group. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded in a single-bond geometry to four equivalent Co(3), four equivalent Ga(1), and one C(1) atom. In the second Co site, Co(2) is bonded in a linear geometry to four equivalent Ga(1) and two equivalent C(1) atoms. In the third Co site, Co(3) is bonded to four equivalent Co(1), four equivalent Co(3), and four equivalent Ga(1) atoms to form CoGa4Co8 cuboctahedra that share corners with four equivalent Co(3)Ga4Co8 cuboctahedra, corners with four equivalent C(1)Co6 octahedra, edges with eight equivalent Ga(1)Co12 cuboctahedra, faces with four equivalent Ga(1)Co12 cuboctahedra, and faces with eight equivalent Co(3)Ga4Co8 cuboctahedra. The corner-sharing octahedral tilt angles are 48°. Ga(1) is bonded to four equivalent Co(1), four equivalent Co(2), and four equivalent Co(3) atoms to form GaCo12 cuboctahedra that share corners with twelve equivalent Ga(1)Co12 cuboctahedra, edges with eight equivalent Co(3)Ga4Co8 cuboctahedra, faces with four equivalent Co(3)Ga4Co8 cuboctahedra, faces with six equivalent Ga(1)Co12 cuboctahedra, and faces with four equivalent C(1)Co6 octahedra. C(1) is bonded to two equivalent Co(1) and four equivalent Co(2) atoms to form CCo6 octahedra that share corners with eight equivalent Co(3)Ga4Co8 cuboctahedra, corners with four equivalent C(1)Co6 octahedra, and faces with eight equivalent Ga(1)Co12 cuboctahedra. The corner-sharing octahedra are not tilted. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ga2Co6C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.717
_cell_length_b   3.717
_cell_length_c   7.103
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   98.134
_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
  Ga  Ga0  1  0.000  0.000  0.741  1.0
  Ga  Ga1  1  0.000  0.000  0.259  1.0
  Co  Co2  1  0.500  0.500  0.736  1.0
  Co  Co3  1  0.500  0.500  0.264  1.0
  Co  Co4  1  0.500  0.000  0.000  1.0
  Co  Co5  1  0.500  0.000  0.500  1.0
  Co  Co6  1  0.000  0.500  0.000  1.0
  Co  Co7  1  0.000  0.500  0.500  1.0
  C  C8  1  0.500  0.500  0.000  1.0
[/CIF]
.
The material structure described by Co6Ga2C crystallizes in the tetragonal P4/mmm space group. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded in a single-bond geometry to four equivalent Co(3), four equivalent Ga(1), and one C(1) atom. In the second Co site, Co(2) is bonded in a linear geometry to four equivalent Ga(1) and two equivalent C(1) atoms. In the third Co site, Co(3) is bonded to four equivalent Co(1), four equivalent Co(3), and four equivalent Ga(1) atoms to form CoGa4Co8 cuboctahedra that share corners with four equivalent Co(3)Ga4Co8 cuboctahedra, corners with four equivalent C(1)Co6 octahedra, edges with eight equivalent Ga(1)Co12 cuboctahedra, faces with four equivalent Ga(1)Co12 cuboctahedra, and faces with eight equivalent Co(3)Ga4Co8 cuboctahedra. The corner-sharing octahedral tilt angles are 48°. Ga(1) is bonded to four equivalent Co(1), four equivalent Co(2), and four equivalent Co(3) atoms to form GaCo12 cuboctahedra that share corners with twelve equivalent Ga(1)Co12 cuboctahedra, edges with eight equivalent Co(3)Ga4Co8 cuboctahedra, faces with four equivalent Co(3)Ga4Co8 cuboctahedra, faces with six equivalent Ga(1)Co12 cuboctahedra, and faces with four equivalent C(1)Co6 octahedra. C(1) is bonded to two equivalent Co(1) and four equivalent Co(2) atoms to form CCo6 octahedra that share corners with eight equivalent Co(3)Ga4Co8 cuboctahedra, corners with four equivalent C(1)Co6 octahedra, and faces with eight equivalent Ga(1)Co12 cuboctahedra. The corner-sharing octahedra are not tilted. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ga2Co6C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.717
_cell_length_b   3.717
_cell_length_c   7.103
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   98.134
_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
  Ga  Ga0  1  0.000  0.000  0.741  1.0
  Ga  Ga1  1  0.000  0.000  0.259  1.0
  Co  Co2  1  0.500  0.500  0.736  1.0
  Co  Co3  1  0.500  0.500  0.264  1.0
  Co  Co4  1  0.500  0.000  0.000  1.0
  Co  Co5  1  0.500  0.000  0.500  1.0
  Co  Co6  1  0.000  0.500  0.000  1.0
  Co  Co7  1  0.000  0.500  0.500  1.0
  C  C8  1  0.500  0.500  0.000  1.0
[/CIF]
.