The crystal structure described by TbFeCu is Hexagonal Laves-derived structured and crystallizes in the orthorhombic Imma space group. Tb(1) is bonded in a 12-coordinate geometry to six equivalent Fe(1) and six equivalent Cu(1) atoms. Fe(1) is bonded to six equivalent Tb(1), two equivalent Fe(1), and four equivalent Cu(1) atoms to form FeTb6Fe2Cu4 cuboctahedra that share corners with eight equivalent Cu(1)Tb6Fe4Cu2 cuboctahedra, corners with ten equivalent Fe(1)Tb6Fe2Cu4 cuboctahedra, edges with six equivalent Fe(1)Tb6Fe2Cu4 cuboctahedra, faces with six equivalent Fe(1)Tb6Fe2Cu4 cuboctahedra, and faces with twelve equivalent Cu(1)Tb6Fe4Cu2 cuboctahedra. Cu(1) is bonded to six equivalent Tb(1), four equivalent Fe(1), and two equivalent Cu(1) atoms to form CuTb6Fe4Cu2 cuboctahedra that share corners with eight equivalent Fe(1)Tb6Fe2Cu4 cuboctahedra, corners with ten equivalent Cu(1)Tb6Fe4Cu2 cuboctahedra, edges with six equivalent Cu(1)Tb6Fe4Cu2 cuboctahedra, faces with six equivalent Cu(1)Tb6Fe4Cu2 cuboctahedra, and faces with twelve equivalent Fe(1)Tb6Fe2Cu4 cuboctahedra. is represented by the CIF file [CIF]
data_TbFeCu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.227
_cell_length_b   5.227
_cell_length_c   5.227
_cell_angle_alpha   92.693
_cell_angle_beta   58.693
_cell_angle_gamma   121.827
_symmetry_Int_Tables_number   1
_cell_volume   98.447
_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  0.500  0.753  0.747  1.0
  Tb  Tb1  1  0.000  0.997  0.003  1.0
  Fe  Fe2  1  0.250  0.875  0.375  1.0
  Fe  Fe3  1  0.750  0.375  0.375  1.0
  Cu  Cu4  1  0.750  0.375  0.875  1.0
  Cu  Cu5  1  0.250  0.375  0.375  1.0
[/CIF]
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The crystal structure described by TbFeCu is Hexagonal Laves-derived structured and crystallizes in the orthorhombic Imma space group. Tb(1) is bonded in a 12-coordinate geometry to six equivalent Fe(1) and six equivalent Cu(1) atoms. Fe(1) is bonded to six equivalent Tb(1), two equivalent Fe(1), and four equivalent Cu(1) atoms to form FeTb6Fe2Cu4 cuboctahedra that share corners with eight equivalent Cu(1)Tb6Fe4Cu2 cuboctahedra, corners with ten equivalent Fe(1)Tb6Fe2Cu4 cuboctahedra, edges with six equivalent Fe(1)Tb6Fe2Cu4 cuboctahedra, faces with six equivalent Fe(1)Tb6Fe2Cu4 cuboctahedra, and faces with twelve equivalent Cu(1)Tb6Fe4Cu2 cuboctahedra. Cu(1) is bonded to six equivalent Tb(1), four equivalent Fe(1), and two equivalent Cu(1) atoms to form CuTb6Fe4Cu2 cuboctahedra that share corners with eight equivalent Fe(1)Tb6Fe2Cu4 cuboctahedra, corners with ten equivalent Cu(1)Tb6Fe4Cu2 cuboctahedra, edges with six equivalent Cu(1)Tb6Fe4Cu2 cuboctahedra, faces with six equivalent Cu(1)Tb6Fe4Cu2 cuboctahedra, and faces with twelve equivalent Fe(1)Tb6Fe2Cu4 cuboctahedra. is represented by the CIF file [CIF]
data_TbFeCu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.227
_cell_length_b   5.227
_cell_length_c   5.227
_cell_angle_alpha   92.693
_cell_angle_beta   58.693
_cell_angle_gamma   121.827
_symmetry_Int_Tables_number   1
_cell_volume   98.447
_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  0.500  0.753  0.747  1.0
  Tb  Tb1  1  0.000  0.997  0.003  1.0
  Fe  Fe2  1  0.250  0.875  0.375  1.0
  Fe  Fe3  1  0.750  0.375  0.375  1.0
  Cu  Cu4  1  0.750  0.375  0.875  1.0
  Cu  Cu5  1  0.250  0.375  0.375  1.0
[/CIF]
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