The structure described by TbMnAl is Hexagonal Laves-derived structured and crystallizes in the orthorhombic Imma space group. Tb(1) is bonded in a 16-coordinate geometry to four equivalent Tb(1), six equivalent Mn(1), and six equivalent Al(1) atoms. Mn(1) is bonded to six equivalent Tb(1), two equivalent Mn(1), and four equivalent Al(1) atoms to form MnTb6Mn2Al4 cuboctahedra that share corners with eight equivalent Al(1)Tb6Mn4Al2 cuboctahedra, corners with ten equivalent Mn(1)Tb6Mn2Al4 cuboctahedra, edges with six equivalent Mn(1)Tb6Mn2Al4 cuboctahedra, faces with six equivalent Mn(1)Tb6Mn2Al4 cuboctahedra, and faces with twelve equivalent Al(1)Tb6Mn4Al2 cuboctahedra. Al(1) is bonded to six equivalent Tb(1), four equivalent Mn(1), and two equivalent Al(1) atoms to form AlTb6Mn4Al2 cuboctahedra that share corners with eight equivalent Mn(1)Tb6Mn2Al4 cuboctahedra, corners with ten equivalent Al(1)Tb6Mn4Al2 cuboctahedra, edges with six equivalent Al(1)Tb6Mn4Al2 cuboctahedra, faces with six equivalent Al(1)Tb6Mn4Al2 cuboctahedra, and faces with twelve equivalent Mn(1)Tb6Mn2Al4 cuboctahedra. is represented by the CIF file [CIF]
data_TbMnAl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.457
_cell_length_b   5.457
_cell_length_c   5.457
_cell_angle_alpha   88.267
_cell_angle_beta   61.537
_cell_angle_gamma   119.550
_symmetry_Int_Tables_number   1
_cell_volume   116.578
_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  0.756  0.744  1.0
  Tb  Tb1  1  0.000  0.994  0.006  1.0
  Mn  Mn2  1  0.250  0.875  0.375  1.0
  Mn  Mn3  1  0.750  0.375  0.375  1.0
  Al  Al4  1  0.750  0.375  0.875  1.0
  Al  Al5  1  0.250  0.375  0.375  1.0
[/CIF]
.
The structure described by TbMnAl is Hexagonal Laves-derived structured and crystallizes in the orthorhombic Imma space group. Tb(1) is bonded in a 16-coordinate geometry to four equivalent Tb(1), six equivalent Mn(1), and six equivalent Al(1) atoms. Mn(1) is bonded to six equivalent Tb(1), two equivalent Mn(1), and four equivalent Al(1) atoms to form MnTb6Mn2Al4 cuboctahedra that share corners with eight equivalent Al(1)Tb6Mn4Al2 cuboctahedra, corners with ten equivalent Mn(1)Tb6Mn2Al4 cuboctahedra, edges with six equivalent Mn(1)Tb6Mn2Al4 cuboctahedra, faces with six equivalent Mn(1)Tb6Mn2Al4 cuboctahedra, and faces with twelve equivalent Al(1)Tb6Mn4Al2 cuboctahedra. Al(1) is bonded to six equivalent Tb(1), four equivalent Mn(1), and two equivalent Al(1) atoms to form AlTb6Mn4Al2 cuboctahedra that share corners with eight equivalent Mn(1)Tb6Mn2Al4 cuboctahedra, corners with ten equivalent Al(1)Tb6Mn4Al2 cuboctahedra, edges with six equivalent Al(1)Tb6Mn4Al2 cuboctahedra, faces with six equivalent Al(1)Tb6Mn4Al2 cuboctahedra, and faces with twelve equivalent Mn(1)Tb6Mn2Al4 cuboctahedra. is represented by the CIF file [CIF]
data_TbMnAl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.457
_cell_length_b   5.457
_cell_length_c   5.457
_cell_angle_alpha   88.267
_cell_angle_beta   61.537
_cell_angle_gamma   119.550
_symmetry_Int_Tables_number   1
_cell_volume   116.578
_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  0.756  0.744  1.0
  Tb  Tb1  1  0.000  0.994  0.006  1.0
  Mn  Mn2  1  0.250  0.875  0.375  1.0
  Mn  Mn3  1  0.750  0.375  0.375  1.0
  Al  Al4  1  0.750  0.375  0.875  1.0
  Al  Al5  1  0.250  0.375  0.375  1.0
[/CIF]
.