The structure described by TbCo6Ge6 crystallizes in the hexagonal P6/mmm space group. Tb(1) is bonded to twelve equivalent Co(1), two equivalent Ge(3), and six equivalent Ge(1) atoms to form distorted TbCo12Ge8 hexagonal bipyramids that share faces with twenty-four equivalent Co(1)Tb2Co4Ge6 cuboctahedra and faces with six equivalent Tb(1)Co12Ge8 hexagonal bipyramids. Co(1) is bonded to two equivalent Tb(1), four equivalent Co(1), two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms to form distorted CoTb2Co4Ge6 cuboctahedra that share corners with fourteen equivalent Co(1)Tb2Co4Ge6 cuboctahedra, edges with seven equivalent Co(1)Tb2Co4Ge6 cuboctahedra, faces with nine equivalent Co(1)Tb2Co4Ge6 cuboctahedra, and faces with four equivalent Tb(1)Co12Ge8 hexagonal bipyramids. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to three equivalent Tb(1) and six equivalent Co(1) atoms. In the second Ge site, Ge(2) is bonded in a 6-coordinate geometry to six equivalent Co(1) atoms. In the third Ge site, Ge(3) is bonded in a 8-coordinate geometry to one Tb(1), six equivalent Co(1), and one Ge(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Tb(CoGe)6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.099
_cell_length_b   5.099
_cell_length_c   7.878
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   177.386
_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
  Tb  Tb0  1  0.000  0.000  0.000  1.0
  Co  Co1  1  0.500  0.500  0.749  1.0
  Co  Co2  1  0.500  0.000  0.749  1.0
  Co  Co3  1  0.000  0.500  0.749  1.0
  Co  Co4  1  0.500  0.500  0.251  1.0
  Co  Co5  1  0.500  0.000  0.251  1.0
  Co  Co6  1  0.000  0.500  0.251  1.0
  Ge  Ge7  1  0.667  0.333  0.000  1.0
  Ge  Ge8  1  0.333  0.667  0.000  1.0
  Ge  Ge9  1  0.667  0.333  0.500  1.0
  Ge  Ge10  1  0.333  0.667  0.500  1.0
  Ge  Ge11  1  0.000  0.000  0.655  1.0
  Ge  Ge12  1  0.000  0.000  0.345  1.0
[/CIF]
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The structure described by TbCo6Ge6 crystallizes in the hexagonal P6/mmm space group. Tb(1) is bonded to twelve equivalent Co(1), two equivalent Ge(3), and six equivalent Ge(1) atoms to form distorted TbCo12Ge8 hexagonal bipyramids that share faces with twenty-four equivalent Co(1)Tb2Co4Ge6 cuboctahedra and faces with six equivalent Tb(1)Co12Ge8 hexagonal bipyramids. Co(1) is bonded to two equivalent Tb(1), four equivalent Co(1), two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms to form distorted CoTb2Co4Ge6 cuboctahedra that share corners with fourteen equivalent Co(1)Tb2Co4Ge6 cuboctahedra, edges with seven equivalent Co(1)Tb2Co4Ge6 cuboctahedra, faces with nine equivalent Co(1)Tb2Co4Ge6 cuboctahedra, and faces with four equivalent Tb(1)Co12Ge8 hexagonal bipyramids. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to three equivalent Tb(1) and six equivalent Co(1) atoms. In the second Ge site, Ge(2) is bonded in a 6-coordinate geometry to six equivalent Co(1) atoms. In the third Ge site, Ge(3) is bonded in a 8-coordinate geometry to one Tb(1), six equivalent Co(1), and one Ge(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Tb(CoGe)6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.099
_cell_length_b   5.099
_cell_length_c   7.878
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   177.386
_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
  Tb  Tb0  1  0.000  0.000  0.000  1.0
  Co  Co1  1  0.500  0.500  0.749  1.0
  Co  Co2  1  0.500  0.000  0.749  1.0
  Co  Co3  1  0.000  0.500  0.749  1.0
  Co  Co4  1  0.500  0.500  0.251  1.0
  Co  Co5  1  0.500  0.000  0.251  1.0
  Co  Co6  1  0.000  0.500  0.251  1.0
  Ge  Ge7  1  0.667  0.333  0.000  1.0
  Ge  Ge8  1  0.333  0.667  0.000  1.0
  Ge  Ge9  1  0.667  0.333  0.500  1.0
  Ge  Ge10  1  0.333  0.667  0.500  1.0
  Ge  Ge11  1  0.000  0.000  0.655  1.0
  Ge  Ge12  1  0.000  0.000  0.345  1.0
[/CIF]
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