The compound described by Nb3Ge crystallizes in the tetragonal P4_2/n space group. There are three inequivalent Nb sites. In the first Nb site, Nb(1) is bonded in a 2-coordinate geometry to two equivalent Ge(1) atoms. In the second Nb site, Nb(2) is bonded in a 4-coordinate geometry to four equivalent Ge(1) atoms. In the third Nb site, Nb(3) is bonded in a 3-coordinate geometry to three equivalent Ge(1) atoms. Ge(1) is bonded in a 9-coordinate geometry to two equivalent Nb(1), three equivalent Nb(3), and four equivalent Nb(2) atoms. is represented by the CIF file [CIF]
data_Nb3Ge
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.349
_cell_length_b   10.349
_cell_length_c   5.279
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   89.999
_symmetry_Int_Tables_number   1
_cell_volume   565.464
_cell_formula_units_Z   8
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
  Nb  Nb0  1  0.916  0.596  0.536  1.0
  Nb  Nb1  1  0.084  0.404  0.536  1.0
  Nb  Nb2  1  0.904  0.416  0.036  1.0
  Nb  Nb3  1  0.096  0.584  0.036  1.0
  Nb  Nb4  1  0.584  0.904  0.964  1.0
  Nb  Nb5  1  0.416  0.096  0.964  1.0
  Nb  Nb6  1  0.596  0.084  0.464  1.0
  Nb  Nb7  1  0.404  0.916  0.464  1.0
  Nb  Nb8  1  0.852  0.984  0.721  1.0
  Nb  Nb9  1  0.148  0.016  0.721  1.0
  Nb  Nb10  1  0.517  0.352  0.221  1.0
  Nb  Nb11  1  0.483  0.648  0.221  1.0
  Nb  Nb12  1  0.648  0.516  0.779  1.0
  Nb  Nb13  1  0.352  0.484  0.779  1.0
  Nb  Nb14  1  0.984  0.148  0.279  1.0
  Nb  Nb15  1  0.016  0.852  0.279  1.0
  Nb  Nb16  1  0.810  0.713  0.016  1.0
  Nb  Nb17  1  0.190  0.287  0.016  1.0
  Nb  Nb18  1  0.787  0.310  0.516  1.0
  Nb  Nb19  1  0.213  0.690  0.516  1.0
  Nb  Nb20  1  0.690  0.787  0.484  1.0
  Nb  Nb21  1  0.310  0.213  0.484  1.0
  Nb  Nb22  1  0.713  0.190  0.984  1.0
  Nb  Nb23  1  0.287  0.810  0.984  1.0
  Ge  Ge24  1  0.795  0.973  0.217  1.0
  Ge  Ge25  1  0.205  0.027  0.217  1.0
  Ge  Ge26  1  0.527  0.295  0.717  1.0
  Ge  Ge27  1  0.473  0.705  0.717  1.0
  Ge  Ge28  1  0.705  0.527  0.283  1.0
  Ge  Ge29  1  0.295  0.473  0.283  1.0
  Ge  Ge30  1  0.973  0.205  0.783  1.0
  Ge  Ge31  1  0.027  0.795  0.783  1.0
[/CIF]
.
The compound described by Nb3Ge crystallizes in the tetragonal P4_2/n space group. There are three inequivalent Nb sites. In the first Nb site, Nb(1) is bonded in a 2-coordinate geometry to two equivalent Ge(1) atoms. In the second Nb site, Nb(2) is bonded in a 4-coordinate geometry to four equivalent Ge(1) atoms. In the third Nb site, Nb(3) is bonded in a 3-coordinate geometry to three equivalent Ge(1) atoms. Ge(1) is bonded in a 9-coordinate geometry to two equivalent Nb(1), three equivalent Nb(3), and four equivalent Nb(2) atoms. is represented by the CIF file [CIF]
data_Nb3Ge
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.349
_cell_length_b   10.349
_cell_length_c   5.279
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   89.999
_symmetry_Int_Tables_number   1
_cell_volume   565.464
_cell_formula_units_Z   8
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
  Nb  Nb0  1  0.916  0.596  0.536  1.0
  Nb  Nb1  1  0.084  0.404  0.536  1.0
  Nb  Nb2  1  0.904  0.416  0.036  1.0
  Nb  Nb3  1  0.096  0.584  0.036  1.0
  Nb  Nb4  1  0.584  0.904  0.964  1.0
  Nb  Nb5  1  0.416  0.096  0.964  1.0
  Nb  Nb6  1  0.596  0.084  0.464  1.0
  Nb  Nb7  1  0.404  0.916  0.464  1.0
  Nb  Nb8  1  0.852  0.984  0.721  1.0
  Nb  Nb9  1  0.148  0.016  0.721  1.0
  Nb  Nb10  1  0.517  0.352  0.221  1.0
  Nb  Nb11  1  0.483  0.648  0.221  1.0
  Nb  Nb12  1  0.648  0.516  0.779  1.0
  Nb  Nb13  1  0.352  0.484  0.779  1.0
  Nb  Nb14  1  0.984  0.148  0.279  1.0
  Nb  Nb15  1  0.016  0.852  0.279  1.0
  Nb  Nb16  1  0.810  0.713  0.016  1.0
  Nb  Nb17  1  0.190  0.287  0.016  1.0
  Nb  Nb18  1  0.787  0.310  0.516  1.0
  Nb  Nb19  1  0.213  0.690  0.516  1.0
  Nb  Nb20  1  0.690  0.787  0.484  1.0
  Nb  Nb21  1  0.310  0.213  0.484  1.0
  Nb  Nb22  1  0.713  0.190  0.984  1.0
  Nb  Nb23  1  0.287  0.810  0.984  1.0
  Ge  Ge24  1  0.795  0.973  0.217  1.0
  Ge  Ge25  1  0.205  0.027  0.217  1.0
  Ge  Ge26  1  0.527  0.295  0.717  1.0
  Ge  Ge27  1  0.473  0.705  0.717  1.0
  Ge  Ge28  1  0.705  0.527  0.283  1.0
  Ge  Ge29  1  0.295  0.473  0.283  1.0
  Ge  Ge30  1  0.973  0.205  0.783  1.0
  Ge  Ge31  1  0.027  0.795  0.783  1.0
[/CIF]
.