The crystal structure described by Tb2NiAl4Ge2 crystallizes in the tetragonal I4/mmm space group. Tb(1) is bonded in a 9-coordinate geometry to four Al(1,1) and five equivalent Ge(1) atoms. Ni(1) is bonded in a body-centered cubic geometry to eight Al(1,1) atoms. There are three inequivalent Al sites. In the first Al site, Al(1) is bonded in a 11-coordinate geometry to two equivalent Tb(1); two equivalent Ni(1); five Al(1,1); and two equivalent Ge(1) atoms. In the second Al site, Al(1) is bonded in a 11-coordinate geometry to two equivalent Tb(1); two equivalent Ni(1); five Al(1,1); and two equivalent Ge(1) atoms. In the third Al site, Al(1) is bonded in a 11-coordinate geometry to two equivalent Tb(1); two equivalent Ni(1); five Al(1,1); and two equivalent Ge(1) atoms. Ge(1) is bonded in a 9-coordinate geometry to five equivalent Tb(1) and four equivalent Al(1) atoms. is represented by the CIF card [CIF]
data_Tb2Al4NiGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.165
_cell_length_b   10.165
_cell_length_c   10.165
_cell_angle_alpha   156.439
_cell_angle_beta   156.439
_cell_angle_gamma   33.564
_symmetry_Int_Tables_number   1
_cell_volume   167.658
_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  0.814  0.814  0.000  1.0
  Tb  Tb1  1  0.186  0.186  0.000  1.0
  Al  Al2  1  0.433  0.933  0.500  1.0
  Al  Al3  1  0.933  0.433  0.500  1.0
  Al  Al4  1  0.067  0.567  0.500  1.0
  Al  Al5  1  0.567  0.067  0.500  1.0
  Ni  Ni6  1  0.000  0.000  0.000  1.0
  Ge  Ge7  1  0.662  0.662  0.000  1.0
  Ge  Ge8  1  0.338  0.338  0.000  1.0
[/CIF]
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The crystal structure described by Tb2NiAl4Ge2 crystallizes in the tetragonal I4/mmm space group. Tb(1) is bonded in a 9-coordinate geometry to four Al(1,1) and five equivalent Ge(1) atoms. Ni(1) is bonded in a body-centered cubic geometry to eight Al(1,1) atoms. There are three inequivalent Al sites. In the first Al site, Al(1) is bonded in a 11-coordinate geometry to two equivalent Tb(1); two equivalent Ni(1); five Al(1,1); and two equivalent Ge(1) atoms. In the second Al site, Al(1) is bonded in a 11-coordinate geometry to two equivalent Tb(1); two equivalent Ni(1); five Al(1,1); and two equivalent Ge(1) atoms. In the third Al site, Al(1) is bonded in a 11-coordinate geometry to two equivalent Tb(1); two equivalent Ni(1); five Al(1,1); and two equivalent Ge(1) atoms. Ge(1) is bonded in a 9-coordinate geometry to five equivalent Tb(1) and four equivalent Al(1) atoms. is represented by the CIF card [CIF]
data_Tb2Al4NiGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.165
_cell_length_b   10.165
_cell_length_c   10.165
_cell_angle_alpha   156.439
_cell_angle_beta   156.439
_cell_angle_gamma   33.564
_symmetry_Int_Tables_number   1
_cell_volume   167.658
_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  0.814  0.814  0.000  1.0
  Tb  Tb1  1  0.186  0.186  0.000  1.0
  Al  Al2  1  0.433  0.933  0.500  1.0
  Al  Al3  1  0.933  0.433  0.500  1.0
  Al  Al4  1  0.067  0.567  0.500  1.0
  Al  Al5  1  0.567  0.067  0.500  1.0
  Ni  Ni6  1  0.000  0.000  0.000  1.0
  Ge  Ge7  1  0.662  0.662  0.000  1.0
  Ge  Ge8  1  0.338  0.338  0.000  1.0
[/CIF]
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