The material structure described by TbFe6Sn6 crystallizes in the orthorhombic Cmcm space group. Tb(1) is bonded to four equivalent Fe(1), four equivalent Fe(2), four equivalent Fe(3), one Sn(4), two equivalent Sn(3), two equivalent Sn(5), and three equivalent Sn(1) atoms to form distorted TbFe12Sn8 hexagonal bipyramids that share corners with four equivalent Tb(1)Fe12Sn8 hexagonal bipyramids, faces with eight equivalent Fe(1)Tb2Fe4Sn6 cuboctahedra, faces with eight equivalent Fe(2)Tb2Fe4Sn6 cuboctahedra, faces with eight equivalent Fe(3)Tb2Fe4Sn6 cuboctahedra, and faces with four equivalent Tb(1)Fe12Sn8 hexagonal bipyramids. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent Tb(1), two equivalent Fe(1), two equivalent Fe(3), two equivalent Sn(3), two equivalent Sn(4), and two equivalent Sn(5) atoms to form distorted FeTb2Fe4Sn6 cuboctahedra that share corners with four equivalent Fe(1)Tb2Fe4Sn6 cuboctahedra, corners with four equivalent Fe(3)Tb2Fe4Sn6 cuboctahedra, corners with six equivalent Fe(2)Tb2Fe4Sn6 cuboctahedra, edges with two equivalent Fe(1)Tb2Fe4Sn6 cuboctahedra, edges with two equivalent Fe(2)Tb2Fe4Sn6 cuboctahedra, edges with two equivalent Fe(3)Tb2Fe4Sn6 cuboctahedra, faces with two equivalent Fe(2)Tb2Fe4Sn6 cuboctahedra, faces with four equivalent Fe(1)Tb2Fe4Sn6 cuboctahedra, faces with four equivalent Fe(3)Tb2Fe4Sn6 cuboctahedra, and faces with four equivalent Tb(1)Fe12Sn8 hexagonal bipyramids. In the second Fe site, Fe(2) is bonded to two equivalent Tb(1), two equivalent Fe(2), two equivalent Fe(3), two equivalent Sn(1), two equivalent Sn(2), and two equivalent Sn(5) atoms to form distorted FeTb2Fe4Sn6 cuboctahedra that share corners with four equivalent Fe(2)Tb2Fe4Sn6 cuboctahedra, corners with four equivalent Fe(3)Tb2Fe4Sn6 cuboctahedra, corners with six equivalent Fe(1)Tb2Fe4Sn6 cuboctahedra, edges with two equivalent Fe(1)Tb2Fe4Sn6 cuboctahedra, edges with two equivalent Fe(3)Tb2Fe4Sn6 cuboctahedra, edges with three equivalent Fe(2)Tb2Fe4Sn6 cuboctahedra, faces with two equivalent Fe(1)Tb2Fe4Sn6 cuboctahedra, faces with three equivalent Fe(2)Tb2Fe4Sn6 cuboctahedra, faces with four equivalent Fe(3)Tb2Fe4Sn6 cuboctahedra, and faces with four equivalent Tb(1)Fe12Sn8 hexagonal bipyramids. In the third Fe site, Fe(3) is bonded to two equivalent Tb(1), two equivalent Fe(1), two equivalent Fe(2), one Sn(1), one Sn(2), one Sn(3), one Sn(4), and two equivalent Sn(5) atoms to form distorted FeTb2Fe4Sn6 cuboctahedra that share corners with four equivalent Fe(1)Tb2Fe4Sn6 cuboctahedra, corners with four equivalent Fe(2)Tb2Fe4Sn6 cuboctahedra, corners with six equivalent Fe(3)Tb2Fe4Sn6 cuboctahedra, edges with two equivalent Fe(1)Tb2Fe4Sn6 cuboctahedra, edges with two equivalent Fe(2)Tb2Fe4Sn6 cuboctahedra, edges with three equivalent Fe(3)Tb2Fe4Sn6 cuboctahedra,  a faceface with one Fe(3)Tb2Fe4Sn6 cuboctahedra, faces with four equivalent Fe(1)Tb2Fe4Sn6 cuboctahedra, faces with four equivalent Fe(2)Tb2Fe4Sn6 cuboctahedra, and faces with four equivalent Tb(1)Fe12Sn8 hexagonal bipyramids. There are five inequivalent Sn sites. In the first Sn site, Sn(3) is bonded in a 8-coordinate geometry to two equivalent Tb(1), two equivalent Fe(3), and four equivalent Fe(1) atoms. In the second Sn site, Sn(4) is bonded in a 7-coordinate geometry to one Tb(1), two equivalent Fe(3), and four equivalent Fe(1) atoms. In the third Sn site, Sn(5) is bonded in a 8-coordinate geometry to one Tb(1), two equivalent Fe(1), two equivalent Fe(2), two equivalent Fe(3), and one Sn(5) atom. In the fourth Sn site, Sn(1) is bonded in a 9-coordinate geometry to three equivalent Tb(1), two equivalent Fe(3), and four equivalent Fe(2) atoms. In the fifth Sn site, Sn(2) is bonded in a 6-coordinate geometry to two equivalent Fe(3) and four equivalent Fe(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Tb(FeSn)6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.397
_cell_length_b   10.397
_cell_length_c   5.433
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   128.862
_symmetry_Int_Tables_number   1
_cell_volume   457.284
_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
  Tb  Tb0  1  0.872  0.128  0.750  1.0
  Tb  Tb1  1  0.128  0.872  0.250  1.0
  Fe  Fe2  1  0.500  0.000  0.000  1.0
  Fe  Fe3  1  0.500  0.000  0.500  1.0
  Fe  Fe4  1  0.000  0.500  0.000  1.0
  Fe  Fe5  1  0.000  0.500  0.500  1.0
  Fe  Fe6  1  0.754  0.754  0.000  1.0
  Fe  Fe7  1  0.246  0.246  0.500  1.0
  Fe  Fe8  1  0.246  0.246  0.000  1.0
  Fe  Fe9  1  0.754  0.754  0.500  1.0
  Fe  Fe10  1  0.628  0.878  0.250  1.0
  Fe  Fe11  1  0.372  0.122  0.750  1.0
  Fe  Fe12  1  0.878  0.628  0.750  1.0
  Fe  Fe13  1  0.122  0.372  0.250  1.0
  Sn  Sn14  1  0.958  0.042  0.250  1.0
  Sn  Sn15  1  0.042  0.958  0.750  1.0
  Sn  Sn16  1  0.460  0.540  0.250  1.0
  Sn  Sn17  1  0.540  0.460  0.750  1.0
  Sn  Sn18  1  0.789  0.211  0.250  1.0
  Sn  Sn19  1  0.211  0.789  0.750  1.0
  Sn  Sn20  1  0.295  0.705  0.250  1.0
  Sn  Sn21  1  0.705  0.295  0.750  1.0
  Sn  Sn22  1  0.539  0.787  0.750  1.0
  Sn  Sn23  1  0.461  0.213  0.250  1.0
  Sn  Sn24  1  0.787  0.539  0.250  1.0
  Sn  Sn25  1  0.213  0.461  0.750  1.0
[/CIF]
.
The material structure described by TbFe6Sn6 crystallizes in the orthorhombic Cmcm space group. Tb(1) is bonded to four equivalent Fe(1), four equivalent Fe(2), four equivalent Fe(3), one Sn(4), two equivalent Sn(3), two equivalent Sn(5), and three equivalent Sn(1) atoms to form distorted TbFe12Sn8 hexagonal bipyramids that share corners with four equivalent Tb(1)Fe12Sn8 hexagonal bipyramids, faces with eight equivalent Fe(1)Tb2Fe4Sn6 cuboctahedra, faces with eight equivalent Fe(2)Tb2Fe4Sn6 cuboctahedra, faces with eight equivalent Fe(3)Tb2Fe4Sn6 cuboctahedra, and faces with four equivalent Tb(1)Fe12Sn8 hexagonal bipyramids. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent Tb(1), two equivalent Fe(1), two equivalent Fe(3), two equivalent Sn(3), two equivalent Sn(4), and two equivalent Sn(5) atoms to form distorted FeTb2Fe4Sn6 cuboctahedra that share corners with four equivalent Fe(1)Tb2Fe4Sn6 cuboctahedra, corners with four equivalent Fe(3)Tb2Fe4Sn6 cuboctahedra, corners with six equivalent Fe(2)Tb2Fe4Sn6 cuboctahedra, edges with two equivalent Fe(1)Tb2Fe4Sn6 cuboctahedra, edges with two equivalent Fe(2)Tb2Fe4Sn6 cuboctahedra, edges with two equivalent Fe(3)Tb2Fe4Sn6 cuboctahedra, faces with two equivalent Fe(2)Tb2Fe4Sn6 cuboctahedra, faces with four equivalent Fe(1)Tb2Fe4Sn6 cuboctahedra, faces with four equivalent Fe(3)Tb2Fe4Sn6 cuboctahedra, and faces with four equivalent Tb(1)Fe12Sn8 hexagonal bipyramids. In the second Fe site, Fe(2) is bonded to two equivalent Tb(1), two equivalent Fe(2), two equivalent Fe(3), two equivalent Sn(1), two equivalent Sn(2), and two equivalent Sn(5) atoms to form distorted FeTb2Fe4Sn6 cuboctahedra that share corners with four equivalent Fe(2)Tb2Fe4Sn6 cuboctahedra, corners with four equivalent Fe(3)Tb2Fe4Sn6 cuboctahedra, corners with six equivalent Fe(1)Tb2Fe4Sn6 cuboctahedra, edges with two equivalent Fe(1)Tb2Fe4Sn6 cuboctahedra, edges with two equivalent Fe(3)Tb2Fe4Sn6 cuboctahedra, edges with three equivalent Fe(2)Tb2Fe4Sn6 cuboctahedra, faces with two equivalent Fe(1)Tb2Fe4Sn6 cuboctahedra, faces with three equivalent Fe(2)Tb2Fe4Sn6 cuboctahedra, faces with four equivalent Fe(3)Tb2Fe4Sn6 cuboctahedra, and faces with four equivalent Tb(1)Fe12Sn8 hexagonal bipyramids. In the third Fe site, Fe(3) is bonded to two equivalent Tb(1), two equivalent Fe(1), two equivalent Fe(2), one Sn(1), one Sn(2), one Sn(3), one Sn(4), and two equivalent Sn(5) atoms to form distorted FeTb2Fe4Sn6 cuboctahedra that share corners with four equivalent Fe(1)Tb2Fe4Sn6 cuboctahedra, corners with four equivalent Fe(2)Tb2Fe4Sn6 cuboctahedra, corners with six equivalent Fe(3)Tb2Fe4Sn6 cuboctahedra, edges with two equivalent Fe(1)Tb2Fe4Sn6 cuboctahedra, edges with two equivalent Fe(2)Tb2Fe4Sn6 cuboctahedra, edges with three equivalent Fe(3)Tb2Fe4Sn6 cuboctahedra,  a faceface with one Fe(3)Tb2Fe4Sn6 cuboctahedra, faces with four equivalent Fe(1)Tb2Fe4Sn6 cuboctahedra, faces with four equivalent Fe(2)Tb2Fe4Sn6 cuboctahedra, and faces with four equivalent Tb(1)Fe12Sn8 hexagonal bipyramids. There are five inequivalent Sn sites. In the first Sn site, Sn(3) is bonded in a 8-coordinate geometry to two equivalent Tb(1), two equivalent Fe(3), and four equivalent Fe(1) atoms. In the second Sn site, Sn(4) is bonded in a 7-coordinate geometry to one Tb(1), two equivalent Fe(3), and four equivalent Fe(1) atoms. In the third Sn site, Sn(5) is bonded in a 8-coordinate geometry to one Tb(1), two equivalent Fe(1), two equivalent Fe(2), two equivalent Fe(3), and one Sn(5) atom. In the fourth Sn site, Sn(1) is bonded in a 9-coordinate geometry to three equivalent Tb(1), two equivalent Fe(3), and four equivalent Fe(2) atoms. In the fifth Sn site, Sn(2) is bonded in a 6-coordinate geometry to two equivalent Fe(3) and four equivalent Fe(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Tb(FeSn)6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.397
_cell_length_b   10.397
_cell_length_c   5.433
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   128.862
_symmetry_Int_Tables_number   1
_cell_volume   457.284
_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
  Tb  Tb0  1  0.872  0.128  0.750  1.0
  Tb  Tb1  1  0.128  0.872  0.250  1.0
  Fe  Fe2  1  0.500  0.000  0.000  1.0
  Fe  Fe3  1  0.500  0.000  0.500  1.0
  Fe  Fe4  1  0.000  0.500  0.000  1.0
  Fe  Fe5  1  0.000  0.500  0.500  1.0
  Fe  Fe6  1  0.754  0.754  0.000  1.0
  Fe  Fe7  1  0.246  0.246  0.500  1.0
  Fe  Fe8  1  0.246  0.246  0.000  1.0
  Fe  Fe9  1  0.754  0.754  0.500  1.0
  Fe  Fe10  1  0.628  0.878  0.250  1.0
  Fe  Fe11  1  0.372  0.122  0.750  1.0
  Fe  Fe12  1  0.878  0.628  0.750  1.0
  Fe  Fe13  1  0.122  0.372  0.250  1.0
  Sn  Sn14  1  0.958  0.042  0.250  1.0
  Sn  Sn15  1  0.042  0.958  0.750  1.0
  Sn  Sn16  1  0.460  0.540  0.250  1.0
  Sn  Sn17  1  0.540  0.460  0.750  1.0
  Sn  Sn18  1  0.789  0.211  0.250  1.0
  Sn  Sn19  1  0.211  0.789  0.750  1.0
  Sn  Sn20  1  0.295  0.705  0.250  1.0
  Sn  Sn21  1  0.705  0.295  0.750  1.0
  Sn  Sn22  1  0.539  0.787  0.750  1.0
  Sn  Sn23  1  0.461  0.213  0.250  1.0
  Sn  Sn24  1  0.787  0.539  0.250  1.0
  Sn  Sn25  1  0.213  0.461  0.750  1.0
[/CIF]
.