The material structure described by Tb3Co2Ge4 crystallizes in the monoclinic C2/m space group. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 6-coordinate geometry to two equivalent Ge(1) and six equivalent Ge(2) atoms. In the second Tb site, Tb(2) is bonded in a 12-coordinate geometry to four equivalent Co(1), three equivalent Ge(2), and five equivalent Ge(1) atoms. Co(1) is bonded in a 8-coordinate geometry to four equivalent Tb(2), one Ge(2), and three equivalent Ge(1) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 10-coordinate geometry to one Tb(1), five equivalent Tb(2), three equivalent Co(1), and one Ge(1) atom. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to three equivalent Tb(1), three equivalent Tb(2), one Co(1), and two equivalent Ge(2) atoms. is represented by the CIF file [CIF]
data_Tb3(CoGe2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.765
_cell_length_b   5.765
_cell_length_c   8.064
_cell_angle_alpha   73.623
_cell_angle_beta   73.623
_cell_angle_gamma   42.340
_symmetry_Int_Tables_number   1
_cell_volume   172.087
_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  0.000  0.000  0.000  1.0
  Tb  Tb1  1  0.377  0.377  0.692  1.0
  Tb  Tb2  1  0.623  0.623  0.308  1.0
  Co  Co3  1  0.693  0.693  0.628  1.0
  Co  Co4  1  0.307  0.307  0.372  1.0
  Ge  Ge5  1  0.099  0.099  0.601  1.0
  Ge  Ge6  1  0.291  0.291  0.081  1.0
  Ge  Ge7  1  0.709  0.709  0.919  1.0
  Ge  Ge8  1  0.901  0.901  0.399  1.0
[/CIF]
.
The material structure described by Tb3Co2Ge4 crystallizes in the monoclinic C2/m space group. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 6-coordinate geometry to two equivalent Ge(1) and six equivalent Ge(2) atoms. In the second Tb site, Tb(2) is bonded in a 12-coordinate geometry to four equivalent Co(1), three equivalent Ge(2), and five equivalent Ge(1) atoms. Co(1) is bonded in a 8-coordinate geometry to four equivalent Tb(2), one Ge(2), and three equivalent Ge(1) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 10-coordinate geometry to one Tb(1), five equivalent Tb(2), three equivalent Co(1), and one Ge(1) atom. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to three equivalent Tb(1), three equivalent Tb(2), one Co(1), and two equivalent Ge(2) atoms. is represented by the CIF file [CIF]
data_Tb3(CoGe2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.765
_cell_length_b   5.765
_cell_length_c   8.064
_cell_angle_alpha   73.623
_cell_angle_beta   73.623
_cell_angle_gamma   42.340
_symmetry_Int_Tables_number   1
_cell_volume   172.087
_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  0.000  0.000  0.000  1.0
  Tb  Tb1  1  0.377  0.377  0.692  1.0
  Tb  Tb2  1  0.623  0.623  0.308  1.0
  Co  Co3  1  0.693  0.693  0.628  1.0
  Co  Co4  1  0.307  0.307  0.372  1.0
  Ge  Ge5  1  0.099  0.099  0.601  1.0
  Ge  Ge6  1  0.291  0.291  0.081  1.0
  Ge  Ge7  1  0.709  0.709  0.919  1.0
  Ge  Ge8  1  0.901  0.901  0.399  1.0
[/CIF]
.