The crystal structure described by Nb10Ge7 crystallizes in the trigonal P-3m1 space group. There are five inequivalent Nb sites. In the first Nb site, Nb(1) is bonded in a 6-coordinate geometry to two equivalent Nb(5), one Ge(1), one Ge(5), and four equivalent Ge(3) atoms. In the second Nb site, Nb(2) is bonded in a 4-coordinate geometry to one Ge(4), two equivalent Ge(1), and two equivalent Ge(2) atoms. In the third Nb site, Nb(3) is bonded in a 2-coordinate geometry to two equivalent Nb(5) and two equivalent Ge(2) atoms. In the fourth Nb site, Nb(4) is bonded in a 4-coordinate geometry to two equivalent Nb(5), two equivalent Ge(1), and two equivalent Ge(3) atoms. In the fifth Nb site, Nb(5) is bonded in a 12-coordinate geometry to two equivalent Nb(1), two equivalent Nb(3), two equivalent Nb(4), two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms. There are five inequivalent Ge sites. In the first Ge site, Ge(2) is bonded in a 7-coordinate geometry to two equivalent Nb(2), two equivalent Nb(3), two equivalent Nb(5), and one Ge(4) atom. In the second Ge site, Ge(3) is bonded in a 8-coordinate geometry to two equivalent Nb(4), two equivalent Nb(5), and four equivalent Nb(1) atoms. In the third Ge site, Ge(4) is bonded in a 6-coordinate geometry to three equivalent Nb(2) and three equivalent Ge(2) atoms. In the fourth Ge site, Ge(5) is bonded in an octahedral geometry to six equivalent Nb(1) atoms. In the fifth Ge site, Ge(1) is bonded in a 7-coordinate geometry to one Nb(1), two equivalent Nb(2), two equivalent Nb(4), and two equivalent Nb(5) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Nb10Ge7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   14.398
_cell_length_b   14.398
_cell_length_c   5.564
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   998.910
_cell_formula_units_Z   3
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  0.909  0.091  0.236  1.0
  Nb  Nb1  1  0.909  0.818  0.236  1.0
  Nb  Nb2  1  0.182  0.091  0.236  1.0
  Nb  Nb3  1  0.818  0.909  0.764  1.0
  Nb  Nb4  1  0.091  0.182  0.764  1.0
  Nb  Nb5  1  0.091  0.909  0.764  1.0
  Nb  Nb6  1  0.601  0.399  0.456  1.0
  Nb  Nb7  1  0.601  0.202  0.456  1.0
  Nb  Nb8  1  0.798  0.399  0.456  1.0
  Nb  Nb9  1  0.202  0.601  0.544  1.0
  Nb  Nb10  1  0.399  0.798  0.544  1.0
  Nb  Nb11  1  0.399  0.601  0.544  1.0
  Nb  Nb12  1  0.508  0.492  0.261  1.0
  Nb  Nb13  1  0.508  0.015  0.261  1.0
  Nb  Nb14  1  0.985  0.492  0.261  1.0
  Nb  Nb15  1  0.015  0.508  0.739  1.0
  Nb  Nb16  1  0.492  0.985  0.739  1.0
  Nb  Nb17  1  0.492  0.508  0.739  1.0
  Nb  Nb18  1  0.319  0.000  0.500  1.0
  Nb  Nb19  1  0.000  0.319  0.500  1.0
  Nb  Nb20  1  0.681  0.681  0.500  1.0
  Nb  Nb21  1  0.681  0.000  0.500  1.0
  Nb  Nb22  1  0.000  0.681  0.500  1.0
  Nb  Nb23  1  0.319  0.319  0.500  1.0
  Nb  Nb24  1  0.308  0.000  0.000  1.0
  Nb  Nb25  1  0.000  0.308  0.000  1.0
  Nb  Nb26  1  0.692  0.692  0.000  1.0
  Nb  Nb27  1  0.692  0.000  0.000  1.0
  Nb  Nb28  1  0.000  0.692  0.000  1.0
  Nb  Nb29  1  0.308  0.308  0.000  1.0
  Ge  Ge30  1  0.796  0.204  0.324  1.0
  Ge  Ge31  1  0.796  0.592  0.324  1.0
  Ge  Ge32  1  0.408  0.204  0.324  1.0
  Ge  Ge33  1  0.592  0.796  0.676  1.0
  Ge  Ge34  1  0.204  0.408  0.676  1.0
  Ge  Ge35  1  0.204  0.796  0.676  1.0
  Ge  Ge36  1  0.420  0.580  0.074  1.0
  Ge  Ge37  1  0.420  0.840  0.074  1.0
  Ge  Ge38  1  0.160  0.580  0.074  1.0
  Ge  Ge39  1  0.840  0.420  0.926  1.0
  Ge  Ge40  1  0.580  0.160  0.926  1.0
  Ge  Ge41  1  0.580  0.420  0.926  1.0
  Ge  Ge42  1  0.129  0.871  0.263  1.0
  Ge  Ge43  1  0.129  0.257  0.263  1.0
  Ge  Ge44  1  0.743  0.871  0.263  1.0
  Ge  Ge45  1  0.257  0.129  0.737  1.0
  Ge  Ge46  1  0.871  0.743  0.737  1.0
  Ge  Ge47  1  0.871  0.129  0.737  1.0
  Ge  Ge48  1  0.333  0.667  0.920  1.0
  Ge  Ge49  1  0.667  0.333  0.080  1.0
  Ge  Ge50  1  0.000  0.000  0.000  1.0
[/CIF]
.
The crystal structure described by Nb10Ge7 crystallizes in the trigonal P-3m1 space group. There are five inequivalent Nb sites. In the first Nb site, Nb(1) is bonded in a 6-coordinate geometry to two equivalent Nb(5), one Ge(1), one Ge(5), and four equivalent Ge(3) atoms. In the second Nb site, Nb(2) is bonded in a 4-coordinate geometry to one Ge(4), two equivalent Ge(1), and two equivalent Ge(2) atoms. In the third Nb site, Nb(3) is bonded in a 2-coordinate geometry to two equivalent Nb(5) and two equivalent Ge(2) atoms. In the fourth Nb site, Nb(4) is bonded in a 4-coordinate geometry to two equivalent Nb(5), two equivalent Ge(1), and two equivalent Ge(3) atoms. In the fifth Nb site, Nb(5) is bonded in a 12-coordinate geometry to two equivalent Nb(1), two equivalent Nb(3), two equivalent Nb(4), two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms. There are five inequivalent Ge sites. In the first Ge site, Ge(2) is bonded in a 7-coordinate geometry to two equivalent Nb(2), two equivalent Nb(3), two equivalent Nb(5), and one Ge(4) atom. In the second Ge site, Ge(3) is bonded in a 8-coordinate geometry to two equivalent Nb(4), two equivalent Nb(5), and four equivalent Nb(1) atoms. In the third Ge site, Ge(4) is bonded in a 6-coordinate geometry to three equivalent Nb(2) and three equivalent Ge(2) atoms. In the fourth Ge site, Ge(5) is bonded in an octahedral geometry to six equivalent Nb(1) atoms. In the fifth Ge site, Ge(1) is bonded in a 7-coordinate geometry to one Nb(1), two equivalent Nb(2), two equivalent Nb(4), and two equivalent Nb(5) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Nb10Ge7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   14.398
_cell_length_b   14.398
_cell_length_c   5.564
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   998.910
_cell_formula_units_Z   3
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  0.909  0.091  0.236  1.0
  Nb  Nb1  1  0.909  0.818  0.236  1.0
  Nb  Nb2  1  0.182  0.091  0.236  1.0
  Nb  Nb3  1  0.818  0.909  0.764  1.0
  Nb  Nb4  1  0.091  0.182  0.764  1.0
  Nb  Nb5  1  0.091  0.909  0.764  1.0
  Nb  Nb6  1  0.601  0.399  0.456  1.0
  Nb  Nb7  1  0.601  0.202  0.456  1.0
  Nb  Nb8  1  0.798  0.399  0.456  1.0
  Nb  Nb9  1  0.202  0.601  0.544  1.0
  Nb  Nb10  1  0.399  0.798  0.544  1.0
  Nb  Nb11  1  0.399  0.601  0.544  1.0
  Nb  Nb12  1  0.508  0.492  0.261  1.0
  Nb  Nb13  1  0.508  0.015  0.261  1.0
  Nb  Nb14  1  0.985  0.492  0.261  1.0
  Nb  Nb15  1  0.015  0.508  0.739  1.0
  Nb  Nb16  1  0.492  0.985  0.739  1.0
  Nb  Nb17  1  0.492  0.508  0.739  1.0
  Nb  Nb18  1  0.319  0.000  0.500  1.0
  Nb  Nb19  1  0.000  0.319  0.500  1.0
  Nb  Nb20  1  0.681  0.681  0.500  1.0
  Nb  Nb21  1  0.681  0.000  0.500  1.0
  Nb  Nb22  1  0.000  0.681  0.500  1.0
  Nb  Nb23  1  0.319  0.319  0.500  1.0
  Nb  Nb24  1  0.308  0.000  0.000  1.0
  Nb  Nb25  1  0.000  0.308  0.000  1.0
  Nb  Nb26  1  0.692  0.692  0.000  1.0
  Nb  Nb27  1  0.692  0.000  0.000  1.0
  Nb  Nb28  1  0.000  0.692  0.000  1.0
  Nb  Nb29  1  0.308  0.308  0.000  1.0
  Ge  Ge30  1  0.796  0.204  0.324  1.0
  Ge  Ge31  1  0.796  0.592  0.324  1.0
  Ge  Ge32  1  0.408  0.204  0.324  1.0
  Ge  Ge33  1  0.592  0.796  0.676  1.0
  Ge  Ge34  1  0.204  0.408  0.676  1.0
  Ge  Ge35  1  0.204  0.796  0.676  1.0
  Ge  Ge36  1  0.420  0.580  0.074  1.0
  Ge  Ge37  1  0.420  0.840  0.074  1.0
  Ge  Ge38  1  0.160  0.580  0.074  1.0
  Ge  Ge39  1  0.840  0.420  0.926  1.0
  Ge  Ge40  1  0.580  0.160  0.926  1.0
  Ge  Ge41  1  0.580  0.420  0.926  1.0
  Ge  Ge42  1  0.129  0.871  0.263  1.0
  Ge  Ge43  1  0.129  0.257  0.263  1.0
  Ge  Ge44  1  0.743  0.871  0.263  1.0
  Ge  Ge45  1  0.257  0.129  0.737  1.0
  Ge  Ge46  1  0.871  0.743  0.737  1.0
  Ge  Ge47  1  0.871  0.129  0.737  1.0
  Ge  Ge48  1  0.333  0.667  0.920  1.0
  Ge  Ge49  1  0.667  0.333  0.080  1.0
  Ge  Ge50  1  0.000  0.000  0.000  1.0
[/CIF]
.