The structure described by Nb3B2 crystallizes in the tetragonal P4/mbm space group. There are two inequivalent Nb sites. In the first Nb site, Nb(1) is bonded in a square co-planar geometry to four equivalent B(1) atoms. In the second Nb site, Nb(2) is bonded in a distorted hexagonal planar geometry to six equivalent B(1) atoms. B(1) is bonded in a 9-coordinate geometry to two equivalent Nb(1), six equivalent Nb(2), and one B(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Nb3B2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.311
_cell_length_b   6.233
_cell_length_c   6.233
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   128.643
_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  0.000  0.000  0.000  1.0
  Nb  Nb1  1  0.000  0.500  0.500  1.0
  Nb  Nb2  1  0.500  0.822  0.322  1.0
  Nb  Nb3  1  0.500  0.678  0.822  1.0
  Nb  Nb4  1  0.500  0.322  0.178  1.0
  Nb  Nb5  1  0.500  0.178  0.678  1.0
  B  B6  1  0.000  0.605  0.105  1.0
  B  B7  1  0.000  0.895  0.605  1.0
  B  B8  1  0.000  0.105  0.395  1.0
  B  B9  1  0.000  0.395  0.895  1.0
[/CIF]
.
The structure described by Nb3B2 crystallizes in the tetragonal P4/mbm space group. There are two inequivalent Nb sites. In the first Nb site, Nb(1) is bonded in a square co-planar geometry to four equivalent B(1) atoms. In the second Nb site, Nb(2) is bonded in a distorted hexagonal planar geometry to six equivalent B(1) atoms. B(1) is bonded in a 9-coordinate geometry to two equivalent Nb(1), six equivalent Nb(2), and one B(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Nb3B2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.311
_cell_length_b   6.233
_cell_length_c   6.233
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   128.643
_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  0.000  0.000  0.000  1.0
  Nb  Nb1  1  0.000  0.500  0.500  1.0
  Nb  Nb2  1  0.500  0.822  0.322  1.0
  Nb  Nb3  1  0.500  0.678  0.822  1.0
  Nb  Nb4  1  0.500  0.322  0.178  1.0
  Nb  Nb5  1  0.500  0.178  0.678  1.0
  B  B6  1  0.000  0.605  0.105  1.0
  B  B7  1  0.000  0.895  0.605  1.0
  B  B8  1  0.000  0.105  0.395  1.0
  B  B9  1  0.000  0.395  0.895  1.0
[/CIF]
.