The material structure described by Nb5Ge3 crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Nb sites. In the first Nb site, Nb(1) is bonded in a 6-coordinate geometry to two equivalent Ge(2) and four equivalent Ge(1) atoms. In the second Nb site, Nb(2) is bonded in a 6-coordinate geometry to two equivalent Nb(2) and four 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 two equivalent Nb(2) and eight equivalent Nb(1) atoms. In the second Ge site, Ge(2) is bonded in a 10-coordinate geometry to eight equivalent Nb(1) and two equivalent Ge(2) atoms. is represented by the CIF file [CIF]
data_Nb5Ge3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.162
_cell_length_b   7.669
_cell_length_c   7.669
_cell_angle_alpha   83.499
_cell_angle_beta   70.339
_cell_angle_gamma   70.340
_symmetry_Int_Tables_number   1
_cell_volume   269.238
_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
  Nb  Nb0  1  0.278  0.146  0.298  1.0
  Nb  Nb1  1  0.722  0.854  0.702  1.0
  Nb  Nb2  1  0.424  0.298  0.854  1.0
  Nb  Nb3  1  0.576  0.702  0.146  1.0
  Nb  Nb4  1  0.924  0.854  0.298  1.0
  Nb  Nb5  1  0.222  0.702  0.854  1.0
  Nb  Nb6  1  0.778  0.298  0.146  1.0
  Nb  Nb7  1  0.076  0.146  0.702  1.0
  Nb  Nb8  1  0.750  0.500  0.500  1.0
  Nb  Nb9  1  0.250  0.500  0.500  1.0
  Ge  Ge10  1  0.835  0.500  0.831  1.0
  Ge  Ge11  1  0.665  0.169  0.500  1.0
  Ge  Ge12  1  0.335  0.831  0.500  1.0
  Ge  Ge13  1  0.165  0.500  0.169  1.0
  Ge  Ge14  1  0.750  0.000  1.000  1.0
  Ge  Ge15  1  0.250  1.000  0.000  1.0
[/CIF]
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The material structure described by Nb5Ge3 crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Nb sites. In the first Nb site, Nb(1) is bonded in a 6-coordinate geometry to two equivalent Ge(2) and four equivalent Ge(1) atoms. In the second Nb site, Nb(2) is bonded in a 6-coordinate geometry to two equivalent Nb(2) and four 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 two equivalent Nb(2) and eight equivalent Nb(1) atoms. In the second Ge site, Ge(2) is bonded in a 10-coordinate geometry to eight equivalent Nb(1) and two equivalent Ge(2) atoms. is represented by the CIF file [CIF]
data_Nb5Ge3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.162
_cell_length_b   7.669
_cell_length_c   7.669
_cell_angle_alpha   83.499
_cell_angle_beta   70.339
_cell_angle_gamma   70.340
_symmetry_Int_Tables_number   1
_cell_volume   269.238
_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
  Nb  Nb0  1  0.278  0.146  0.298  1.0
  Nb  Nb1  1  0.722  0.854  0.702  1.0
  Nb  Nb2  1  0.424  0.298  0.854  1.0
  Nb  Nb3  1  0.576  0.702  0.146  1.0
  Nb  Nb4  1  0.924  0.854  0.298  1.0
  Nb  Nb5  1  0.222  0.702  0.854  1.0
  Nb  Nb6  1  0.778  0.298  0.146  1.0
  Nb  Nb7  1  0.076  0.146  0.702  1.0
  Nb  Nb8  1  0.750  0.500  0.500  1.0
  Nb  Nb9  1  0.250  0.500  0.500  1.0
  Ge  Ge10  1  0.835  0.500  0.831  1.0
  Ge  Ge11  1  0.665  0.169  0.500  1.0
  Ge  Ge12  1  0.335  0.831  0.500  1.0
  Ge  Ge13  1  0.165  0.500  0.169  1.0
  Ge  Ge14  1  0.750  0.000  1.000  1.0
  Ge  Ge15  1  0.250  1.000  0.000  1.0
[/CIF]
.