The compound described by Tb5Ge4 crystallizes in the orthorhombic Pnma space group. There are three inequivalent Tb sites. In the first Tb site, Tb(1) is bonded to two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms to form corner-sharing TbGe6 octahedra. The corner-sharing octahedral tilt angles range from 52-54°. In the second Tb site, Tb(2) is bonded in a 6-coordinate geometry to one Ge(2), two equivalent Ge(1), and three equivalent Ge(3) atoms. In the third Tb site, Tb(3) is bonded in a 6-coordinate geometry to one Ge(1), two equivalent Ge(2), and three equivalent Ge(3) atoms. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent Tb(1), two equivalent Tb(3), four equivalent Tb(2), and one Ge(2) atom. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Tb(1), two equivalent Tb(2), four equivalent Tb(3), and one Ge(1) atom. In the third Ge site, Ge(3) is bonded in a 7-coordinate geometry to one Tb(1), three equivalent Tb(2), and three equivalent Tb(3) atoms. is represented by the CIF file [CIF]
data_Tb5Ge4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.676
_cell_length_b   7.739
_cell_length_c   14.731
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   875.110
_cell_formula_units_Z   4
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  0.722  0.997  0.750  1.0
  Tb  Tb1  1  0.222  0.503  0.750  1.0
  Tb  Tb2  1  0.778  0.497  0.250  1.0
  Tb  Tb3  1  0.278  0.003  0.250  1.0
  Tb  Tb4  1  0.038  0.174  0.604  1.0
  Tb  Tb5  1  0.538  0.326  0.896  1.0
  Tb  Tb6  1  0.462  0.674  0.396  1.0
  Tb  Tb7  1  0.962  0.826  0.104  1.0
  Tb  Tb8  1  0.962  0.826  0.396  1.0
  Tb  Tb9  1  0.462  0.674  0.104  1.0
  Tb  Tb10  1  0.538  0.326  0.604  1.0
  Tb  Tb11  1  0.038  0.174  0.896  1.0
  Tb  Tb12  1  0.887  0.660  0.615  1.0
  Tb  Tb13  1  0.387  0.840  0.885  1.0
  Tb  Tb14  1  0.613  0.160  0.385  1.0
  Tb  Tb15  1  0.113  0.340  0.115  1.0
  Tb  Tb16  1  0.113  0.340  0.385  1.0
  Tb  Tb17  1  0.613  0.160  0.115  1.0
  Tb  Tb18  1  0.387  0.840  0.615  1.0
  Tb  Tb19  1  0.887  0.660  0.885  1.0
  Ge  Ge20  1  0.159  0.635  0.250  1.0
  Ge  Ge21  1  0.659  0.865  0.250  1.0
  Ge  Ge22  1  0.341  0.135  0.750  1.0
  Ge  Ge23  1  0.841  0.365  0.750  1.0
  Ge  Ge24  1  0.907  0.117  0.250  1.0
  Ge  Ge25  1  0.407  0.383  0.250  1.0
  Ge  Ge26  1  0.593  0.617  0.750  1.0
  Ge  Ge27  1  0.093  0.883  0.750  1.0
  Ge  Ge28  1  0.772  0.472  0.454  1.0
  Ge  Ge29  1  0.272  0.028  0.046  1.0
  Ge  Ge30  1  0.728  0.972  0.546  1.0
  Ge  Ge31  1  0.228  0.528  0.954  1.0
  Ge  Ge32  1  0.228  0.528  0.546  1.0
  Ge  Ge33  1  0.728  0.972  0.954  1.0
  Ge  Ge34  1  0.272  0.028  0.454  1.0
  Ge  Ge35  1  0.772  0.472  0.046  1.0
[/CIF]
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The compound described by Tb5Ge4 crystallizes in the orthorhombic Pnma space group. There are three inequivalent Tb sites. In the first Tb site, Tb(1) is bonded to two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms to form corner-sharing TbGe6 octahedra. The corner-sharing octahedral tilt angles range from 52-54°. In the second Tb site, Tb(2) is bonded in a 6-coordinate geometry to one Ge(2), two equivalent Ge(1), and three equivalent Ge(3) atoms. In the third Tb site, Tb(3) is bonded in a 6-coordinate geometry to one Ge(1), two equivalent Ge(2), and three equivalent Ge(3) atoms. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent Tb(1), two equivalent Tb(3), four equivalent Tb(2), and one Ge(2) atom. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Tb(1), two equivalent Tb(2), four equivalent Tb(3), and one Ge(1) atom. In the third Ge site, Ge(3) is bonded in a 7-coordinate geometry to one Tb(1), three equivalent Tb(2), and three equivalent Tb(3) atoms. is represented by the CIF file [CIF]
data_Tb5Ge4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.676
_cell_length_b   7.739
_cell_length_c   14.731
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   875.110
_cell_formula_units_Z   4
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  0.722  0.997  0.750  1.0
  Tb  Tb1  1  0.222  0.503  0.750  1.0
  Tb  Tb2  1  0.778  0.497  0.250  1.0
  Tb  Tb3  1  0.278  0.003  0.250  1.0
  Tb  Tb4  1  0.038  0.174  0.604  1.0
  Tb  Tb5  1  0.538  0.326  0.896  1.0
  Tb  Tb6  1  0.462  0.674  0.396  1.0
  Tb  Tb7  1  0.962  0.826  0.104  1.0
  Tb  Tb8  1  0.962  0.826  0.396  1.0
  Tb  Tb9  1  0.462  0.674  0.104  1.0
  Tb  Tb10  1  0.538  0.326  0.604  1.0
  Tb  Tb11  1  0.038  0.174  0.896  1.0
  Tb  Tb12  1  0.887  0.660  0.615  1.0
  Tb  Tb13  1  0.387  0.840  0.885  1.0
  Tb  Tb14  1  0.613  0.160  0.385  1.0
  Tb  Tb15  1  0.113  0.340  0.115  1.0
  Tb  Tb16  1  0.113  0.340  0.385  1.0
  Tb  Tb17  1  0.613  0.160  0.115  1.0
  Tb  Tb18  1  0.387  0.840  0.615  1.0
  Tb  Tb19  1  0.887  0.660  0.885  1.0
  Ge  Ge20  1  0.159  0.635  0.250  1.0
  Ge  Ge21  1  0.659  0.865  0.250  1.0
  Ge  Ge22  1  0.341  0.135  0.750  1.0
  Ge  Ge23  1  0.841  0.365  0.750  1.0
  Ge  Ge24  1  0.907  0.117  0.250  1.0
  Ge  Ge25  1  0.407  0.383  0.250  1.0
  Ge  Ge26  1  0.593  0.617  0.750  1.0
  Ge  Ge27  1  0.093  0.883  0.750  1.0
  Ge  Ge28  1  0.772  0.472  0.454  1.0
  Ge  Ge29  1  0.272  0.028  0.046  1.0
  Ge  Ge30  1  0.728  0.972  0.546  1.0
  Ge  Ge31  1  0.228  0.528  0.954  1.0
  Ge  Ge32  1  0.228  0.528  0.546  1.0
  Ge  Ge33  1  0.728  0.972  0.954  1.0
  Ge  Ge34  1  0.272  0.028  0.454  1.0
  Ge  Ge35  1  0.772  0.472  0.046  1.0
[/CIF]
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