The material structure described by Nb2Sb crystallizes in the triclinic P1 space group. There are fourteen inequivalent Nb sites. In the first Nb site, Nb(1) is bonded in a 2-coordinate geometry to one Nb(4), one Sb(1), and one Sb(2) atom. In the second Nb site, Nb(2) is bonded in a 2-coordinate geometry to one Nb(3), one Sb(1), one Sb(3), and two equivalent Sb(2) atoms. In the third Nb site, Nb(3) is bonded in a 7-coordinate geometry to one Nb(2), one Nb(8), two equivalent Nb(3), one Sb(3), and two equivalent Sb(2) atoms. In the fourth Nb site, Nb(4) is bonded in a 8-coordinate geometry to one Nb(1), one Nb(12), two equivalent Nb(4), one Sb(2), one Sb(7), and two equivalent Sb(1) atoms. In the fifth Nb site, Nb(5) is bonded in a 7-coordinate geometry to one Nb(10), one Nb(8), two equivalent Nb(5), one Sb(4), and two equivalent Sb(3) atoms. In the sixth Nb site, Nb(6) is bonded in a 7-coordinate geometry to one Nb(10), one Nb(7), two equivalent Nb(6), one Sb(5), and two equivalent Sb(4) atoms. In the seventh Nb site, Nb(7) is bonded in a 7-coordinate geometry to one Nb(6), one Nb(9), two equivalent Nb(7), one Sb(6), and two equivalent Sb(5) atoms. In the eighth Nb site, Nb(8) is bonded in a 3-coordinate geometry to one Nb(3), one Nb(5), one Sb(4), and two equivalent Sb(3) atoms. In the ninth Nb site, Nb(9) is bonded in a 7-coordinate geometry to one Nb(13), one Nb(7), two equivalent Nb(9), one Sb(6), and two equivalent Sb(5) atoms. In the tenth Nb site, Nb(10) is bonded in a 3-coordinate geometry to one Nb(5), one Nb(6), one Sb(5), and two equivalent Sb(4) atoms. In the eleventh Nb site, Nb(11) is bonded in a 7-coordinate geometry to one Nb(13), one Nb(14), two equivalent Nb(11), one Sb(7), and two equivalent Sb(6) atoms. In the twelfth Nb site, Nb(12) is bonded in a 8-coordinate geometry to one Nb(14), one Nb(4), two equivalent Nb(12), two equivalent Sb(1), and two equivalent Sb(7) atoms. In the thirteenth Nb site, Nb(13) is bonded in a 3-coordinate geometry to one Nb(11), one Nb(9), one Sb(7), and two equivalent Sb(6) atoms. In the fourteenth Nb site, Nb(14) is bonded in a 3-coordinate geometry to one Nb(11), one Nb(12), one Sb(1), and two equivalent Sb(7) atoms. There are seven inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 10-coordinate geometry to one Nb(1), one Nb(14), one Nb(2), two equivalent Nb(12), two equivalent Nb(4), one Sb(2), and two equivalent Sb(1) atoms. In the second Sb site, Sb(2) is bonded in a 8-coordinate geometry to one Nb(1), one Nb(4), two equivalent Nb(2), two equivalent Nb(3), one Sb(1), and two equivalent Sb(2) atoms. In the third Sb site, Sb(3) is bonded in a 6-coordinate geometry to one Nb(2), one Nb(3), two equivalent Nb(5), and two equivalent Nb(8) atoms. In the fourth Sb site, Sb(4) is bonded in a 6-coordinate geometry to one Nb(5), one Nb(8), two equivalent Nb(10), and two equivalent Nb(6) atoms. In the fifth Sb site, Sb(5) is bonded in a 6-coordinate geometry to one Nb(10), one Nb(6), two equivalent Nb(7), and two equivalent Nb(9) atoms. In the sixth Sb site, Sb(6) is bonded in a 6-coordinate geometry to one Nb(7), one Nb(9), two equivalent Nb(11), and two equivalent Nb(13) atoms. In the seventh Sb site, Sb(7) is bonded in a 7-coordinate geometry to one Nb(11), one Nb(13), one Nb(4), two equivalent Nb(12), and two equivalent Nb(14) atoms. is represented by the CIF card [CIF]
data_Nb2Sb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.938
_cell_length_b   6.947
_cell_length_c   21.205
_cell_angle_alpha   83.210
_cell_angle_beta   86.291
_cell_angle_gamma   83.536
_symmetry_Int_Tables_number   1
_cell_volume   426.518
_cell_formula_units_Z   7
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  0.603  0.068  0.861  1.0
  Nb  Nb1  1  0.890  0.836  0.765  1.0
  Nb  Nb2  1  0.083  0.204  0.720  1.0
  Nb  Nb3  1  0.257  0.320  0.946  1.0
  Nb  Nb4  1  0.661  0.342  0.578  1.0
  Nb  Nb5  1  0.238  0.489  0.435  1.0
  Nb  Nb6  1  0.621  0.265  0.341  1.0
  Nb  Nb7  1  0.466  0.972  0.626  1.0
  Nb  Nb8  1  0.812  0.643  0.292  1.0
  Nb  Nb9  1  0.044  0.114  0.483  1.0
  Nb  Nb10  1  0.387  0.806  0.150  1.0
  Nb  Nb11  1  0.998  0.951  0.008  1.0
  Nb  Nb12  1  0.196  0.421  0.198  1.0
  Nb  Nb13  1  0.774  0.581  0.062  1.0
  Sb  Sb14  1  0.668  0.693  0.927  1.0
  Sb  Sb15  1  0.411  0.462  0.807  1.0
  Sb  Sb16  1  0.041  0.598  0.659  1.0
  Sb  Sb17  1  0.621  0.743  0.515  1.0
  Sb  Sb18  1  0.193  0.893  0.372  1.0
  Sb  Sb19  1  0.768  0.052  0.229  1.0
  Sb  Sb20  1  0.363  0.212  0.082  1.0
[/CIF]
.
The material structure described by Nb2Sb crystallizes in the triclinic P1 space group. There are fourteen inequivalent Nb sites. In the first Nb site, Nb(1) is bonded in a 2-coordinate geometry to one Nb(4), one Sb(1), and one Sb(2) atom. In the second Nb site, Nb(2) is bonded in a 2-coordinate geometry to one Nb(3), one Sb(1), one Sb(3), and two equivalent Sb(2) atoms. In the third Nb site, Nb(3) is bonded in a 7-coordinate geometry to one Nb(2), one Nb(8), two equivalent Nb(3), one Sb(3), and two equivalent Sb(2) atoms. In the fourth Nb site, Nb(4) is bonded in a 8-coordinate geometry to one Nb(1), one Nb(12), two equivalent Nb(4), one Sb(2), one Sb(7), and two equivalent Sb(1) atoms. In the fifth Nb site, Nb(5) is bonded in a 7-coordinate geometry to one Nb(10), one Nb(8), two equivalent Nb(5), one Sb(4), and two equivalent Sb(3) atoms. In the sixth Nb site, Nb(6) is bonded in a 7-coordinate geometry to one Nb(10), one Nb(7), two equivalent Nb(6), one Sb(5), and two equivalent Sb(4) atoms. In the seventh Nb site, Nb(7) is bonded in a 7-coordinate geometry to one Nb(6), one Nb(9), two equivalent Nb(7), one Sb(6), and two equivalent Sb(5) atoms. In the eighth Nb site, Nb(8) is bonded in a 3-coordinate geometry to one Nb(3), one Nb(5), one Sb(4), and two equivalent Sb(3) atoms. In the ninth Nb site, Nb(9) is bonded in a 7-coordinate geometry to one Nb(13), one Nb(7), two equivalent Nb(9), one Sb(6), and two equivalent Sb(5) atoms. In the tenth Nb site, Nb(10) is bonded in a 3-coordinate geometry to one Nb(5), one Nb(6), one Sb(5), and two equivalent Sb(4) atoms. In the eleventh Nb site, Nb(11) is bonded in a 7-coordinate geometry to one Nb(13), one Nb(14), two equivalent Nb(11), one Sb(7), and two equivalent Sb(6) atoms. In the twelfth Nb site, Nb(12) is bonded in a 8-coordinate geometry to one Nb(14), one Nb(4), two equivalent Nb(12), two equivalent Sb(1), and two equivalent Sb(7) atoms. In the thirteenth Nb site, Nb(13) is bonded in a 3-coordinate geometry to one Nb(11), one Nb(9), one Sb(7), and two equivalent Sb(6) atoms. In the fourteenth Nb site, Nb(14) is bonded in a 3-coordinate geometry to one Nb(11), one Nb(12), one Sb(1), and two equivalent Sb(7) atoms. There are seven inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 10-coordinate geometry to one Nb(1), one Nb(14), one Nb(2), two equivalent Nb(12), two equivalent Nb(4), one Sb(2), and two equivalent Sb(1) atoms. In the second Sb site, Sb(2) is bonded in a 8-coordinate geometry to one Nb(1), one Nb(4), two equivalent Nb(2), two equivalent Nb(3), one Sb(1), and two equivalent Sb(2) atoms. In the third Sb site, Sb(3) is bonded in a 6-coordinate geometry to one Nb(2), one Nb(3), two equivalent Nb(5), and two equivalent Nb(8) atoms. In the fourth Sb site, Sb(4) is bonded in a 6-coordinate geometry to one Nb(5), one Nb(8), two equivalent Nb(10), and two equivalent Nb(6) atoms. In the fifth Sb site, Sb(5) is bonded in a 6-coordinate geometry to one Nb(10), one Nb(6), two equivalent Nb(7), and two equivalent Nb(9) atoms. In the sixth Sb site, Sb(6) is bonded in a 6-coordinate geometry to one Nb(7), one Nb(9), two equivalent Nb(11), and two equivalent Nb(13) atoms. In the seventh Sb site, Sb(7) is bonded in a 7-coordinate geometry to one Nb(11), one Nb(13), one Nb(4), two equivalent Nb(12), and two equivalent Nb(14) atoms. is represented by the CIF card [CIF]
data_Nb2Sb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.938
_cell_length_b   6.947
_cell_length_c   21.205
_cell_angle_alpha   83.210
_cell_angle_beta   86.291
_cell_angle_gamma   83.536
_symmetry_Int_Tables_number   1
_cell_volume   426.518
_cell_formula_units_Z   7
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  0.603  0.068  0.861  1.0
  Nb  Nb1  1  0.890  0.836  0.765  1.0
  Nb  Nb2  1  0.083  0.204  0.720  1.0
  Nb  Nb3  1  0.257  0.320  0.946  1.0
  Nb  Nb4  1  0.661  0.342  0.578  1.0
  Nb  Nb5  1  0.238  0.489  0.435  1.0
  Nb  Nb6  1  0.621  0.265  0.341  1.0
  Nb  Nb7  1  0.466  0.972  0.626  1.0
  Nb  Nb8  1  0.812  0.643  0.292  1.0
  Nb  Nb9  1  0.044  0.114  0.483  1.0
  Nb  Nb10  1  0.387  0.806  0.150  1.0
  Nb  Nb11  1  0.998  0.951  0.008  1.0
  Nb  Nb12  1  0.196  0.421  0.198  1.0
  Nb  Nb13  1  0.774  0.581  0.062  1.0
  Sb  Sb14  1  0.668  0.693  0.927  1.0
  Sb  Sb15  1  0.411  0.462  0.807  1.0
  Sb  Sb16  1  0.041  0.598  0.659  1.0
  Sb  Sb17  1  0.621  0.743  0.515  1.0
  Sb  Sb18  1  0.193  0.893  0.372  1.0
  Sb  Sb19  1  0.768  0.052  0.229  1.0
  Sb  Sb20  1  0.363  0.212  0.082  1.0
[/CIF]
.