The structure described by Ta5Ge3 crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Ta sites. In the first Ta site, Ta(1) is bonded in a 5-coordinate geometry to two equivalent Ge(2) and three equivalent Ge(1) atoms. In the second Ta site, Ta(2) is bonded to two equivalent Ge(2) and four equivalent Ge(1) atoms to form distorted corner-sharing TaGe6 octahedra. The corner-sharing octahedral tilt angles range from 0-49°. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent Ta(2), six equivalent Ta(1), and one Ge(1) atom. In the second Ge site, Ge(2) is bonded in a 10-coordinate geometry to two equivalent Ta(2) and eight equivalent Ta(1) atoms. is represented by the CIF card [CIF]
data_Ta5Ge3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.635
_cell_length_b   6.635
_cell_length_c   7.623
_cell_angle_alpha   115.797
_cell_angle_beta   115.797
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   264.498
_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
  Ta  Ta0  1  0.185  0.007  0.692  1.0
  Ta  Ta1  1  0.007  0.507  0.692  1.0
  Ta  Ta2  1  0.685  0.185  0.692  1.0
  Ta  Ta3  1  0.993  0.493  0.308  1.0
  Ta  Ta4  1  0.507  0.685  0.692  1.0
  Ta  Ta5  1  0.815  0.993  0.308  1.0
  Ta  Ta6  1  0.493  0.315  0.308  1.0
  Ta  Ta7  1  0.315  0.815  0.308  1.0
  Ta  Ta8  1  0.500  0.500  0.000  1.0
  Ta  Ta9  1  0.000  0.000  0.000  1.0
  Ge  Ge10  1  0.636  0.136  1.000  1.0
  Ge  Ge11  1  0.864  0.636  1.000  1.0
  Ge  Ge12  1  0.136  0.364  0.000  1.0
  Ge  Ge13  1  0.364  0.864  0.000  1.0
  Ge  Ge14  1  0.750  0.750  0.500  1.0
  Ge  Ge15  1  0.250  0.250  0.500  1.0
[/CIF]
.
The structure described by Ta5Ge3 crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Ta sites. In the first Ta site, Ta(1) is bonded in a 5-coordinate geometry to two equivalent Ge(2) and three equivalent Ge(1) atoms. In the second Ta site, Ta(2) is bonded to two equivalent Ge(2) and four equivalent Ge(1) atoms to form distorted corner-sharing TaGe6 octahedra. The corner-sharing octahedral tilt angles range from 0-49°. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent Ta(2), six equivalent Ta(1), and one Ge(1) atom. In the second Ge site, Ge(2) is bonded in a 10-coordinate geometry to two equivalent Ta(2) and eight equivalent Ta(1) atoms. is represented by the CIF card [CIF]
data_Ta5Ge3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.635
_cell_length_b   6.635
_cell_length_c   7.623
_cell_angle_alpha   115.797
_cell_angle_beta   115.797
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   264.498
_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
  Ta  Ta0  1  0.185  0.007  0.692  1.0
  Ta  Ta1  1  0.007  0.507  0.692  1.0
  Ta  Ta2  1  0.685  0.185  0.692  1.0
  Ta  Ta3  1  0.993  0.493  0.308  1.0
  Ta  Ta4  1  0.507  0.685  0.692  1.0
  Ta  Ta5  1  0.815  0.993  0.308  1.0
  Ta  Ta6  1  0.493  0.315  0.308  1.0
  Ta  Ta7  1  0.315  0.815  0.308  1.0
  Ta  Ta8  1  0.500  0.500  0.000  1.0
  Ta  Ta9  1  0.000  0.000  0.000  1.0
  Ge  Ge10  1  0.636  0.136  1.000  1.0
  Ge  Ge11  1  0.864  0.636  1.000  1.0
  Ge  Ge12  1  0.136  0.364  0.000  1.0
  Ge  Ge13  1  0.364  0.864  0.000  1.0
  Ge  Ge14  1  0.750  0.750  0.500  1.0
  Ge  Ge15  1  0.250  0.250  0.500  1.0
[/CIF]
.