The crystal structure described by TbFe6Sn4Ge2 crystallizes in the hexagonal P6/mmm space group. Tb(1) is bonded to twelve equivalent Fe(1), two equivalent Sn(2), and six equivalent Ge(1) atoms to form distorted TbFe12Sn2Ge6 hexagonal bipyramids that share faces with twenty-four equivalent Fe(1)Tb2Fe4Sn4Ge2 cuboctahedra and faces with six equivalent Tb(1)Fe12Sn2Ge6 hexagonal bipyramids. Fe(1) is bonded to two equivalent Tb(1), four equivalent Fe(1), two equivalent Sn(1), two equivalent Sn(2), and two equivalent Ge(1) atoms to form distorted FeTb2Fe4Sn4Ge2 cuboctahedra that share corners with fourteen equivalent Fe(1)Tb2Fe4Sn4Ge2 cuboctahedra, edges with seven equivalent Fe(1)Tb2Fe4Sn4Ge2 cuboctahedra, faces with nine equivalent Fe(1)Tb2Fe4Sn4Ge2 cuboctahedra, and faces with four equivalent Tb(1)Fe12Sn2Ge6 hexagonal bipyramids. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 6-coordinate geometry to six equivalent Fe(1) atoms. In the second Sn site, Sn(2) is bonded in a 8-coordinate geometry to one Tb(1), six equivalent Fe(1), and one Sn(2) atom. Ge(1) is bonded in a 9-coordinate geometry to three equivalent Tb(1) and six equivalent Fe(1) atoms. is represented by the CIF card [CIF]
data_TbFe6(Sn2Ge)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.302
_cell_length_b   5.302
_cell_length_c   8.736
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   212.714
_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
  Fe  Fe1  1  0.500  0.500  0.768  1.0
  Fe  Fe2  1  0.500  0.500  0.232  1.0
  Fe  Fe3  1  0.000  0.500  0.768  1.0
  Fe  Fe4  1  0.000  0.500  0.232  1.0
  Fe  Fe5  1  0.500  0.000  0.768  1.0
  Fe  Fe6  1  0.500  0.000  0.232  1.0
  Sn  Sn7  1  0.667  0.333  0.500  1.0
  Sn  Sn8  1  0.333  0.667  0.500  1.0
  Sn  Sn9  1  0.000  0.000  0.663  1.0
  Sn  Sn10  1  0.000  0.000  0.337  1.0
  Ge  Ge11  1  0.667  0.333  0.000  1.0
  Ge  Ge12  1  0.333  0.667  0.000  1.0
[/CIF]
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The crystal structure described by TbFe6Sn4Ge2 crystallizes in the hexagonal P6/mmm space group. Tb(1) is bonded to twelve equivalent Fe(1), two equivalent Sn(2), and six equivalent Ge(1) atoms to form distorted TbFe12Sn2Ge6 hexagonal bipyramids that share faces with twenty-four equivalent Fe(1)Tb2Fe4Sn4Ge2 cuboctahedra and faces with six equivalent Tb(1)Fe12Sn2Ge6 hexagonal bipyramids. Fe(1) is bonded to two equivalent Tb(1), four equivalent Fe(1), two equivalent Sn(1), two equivalent Sn(2), and two equivalent Ge(1) atoms to form distorted FeTb2Fe4Sn4Ge2 cuboctahedra that share corners with fourteen equivalent Fe(1)Tb2Fe4Sn4Ge2 cuboctahedra, edges with seven equivalent Fe(1)Tb2Fe4Sn4Ge2 cuboctahedra, faces with nine equivalent Fe(1)Tb2Fe4Sn4Ge2 cuboctahedra, and faces with four equivalent Tb(1)Fe12Sn2Ge6 hexagonal bipyramids. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 6-coordinate geometry to six equivalent Fe(1) atoms. In the second Sn site, Sn(2) is bonded in a 8-coordinate geometry to one Tb(1), six equivalent Fe(1), and one Sn(2) atom. Ge(1) is bonded in a 9-coordinate geometry to three equivalent Tb(1) and six equivalent Fe(1) atoms. is represented by the CIF card [CIF]
data_TbFe6(Sn2Ge)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.302
_cell_length_b   5.302
_cell_length_c   8.736
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   212.714
_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
  Fe  Fe1  1  0.500  0.500  0.768  1.0
  Fe  Fe2  1  0.500  0.500  0.232  1.0
  Fe  Fe3  1  0.000  0.500  0.768  1.0
  Fe  Fe4  1  0.000  0.500  0.232  1.0
  Fe  Fe5  1  0.500  0.000  0.768  1.0
  Fe  Fe6  1  0.500  0.000  0.232  1.0
  Sn  Sn7  1  0.667  0.333  0.500  1.0
  Sn  Sn8  1  0.333  0.667  0.500  1.0
  Sn  Sn9  1  0.000  0.000  0.663  1.0
  Sn  Sn10  1  0.000  0.000  0.337  1.0
  Ge  Ge11  1  0.667  0.333  0.000  1.0
  Ge  Ge12  1  0.333  0.667  0.000  1.0
[/CIF]
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