The material described by Nb2O5 crystallizes in the monoclinic C2 space group. Nb(1) is bonded in a 7-coordinate geometry to two equivalent O(1), two equivalent O(3), and three equivalent O(2) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Nb(1) atoms to form distorted corner-sharing ONb4 tetrahedra. In the second O site, O(2) is bonded in a 3-coordinate geometry to three equivalent Nb(1) atoms. In the third O site, O(3) is bonded in a water-like geometry to two equivalent Nb(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Nb2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.056
_cell_length_b   4.056
_cell_length_c   5.845
_cell_angle_alpha   68.587
_cell_angle_beta   68.587
_cell_angle_gamma   80.705
_symmetry_Int_Tables_number   1
_cell_volume   83.305
_cell_formula_units_Z   1
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  0.850  0.771  0.295  1.0
  Nb  Nb1  1  0.229  0.150  0.705  1.0
  O  O2  1  0.283  0.717  0.500  1.0
  O  O3  1  0.637  0.209  0.354  1.0
  O  O4  1  0.238  0.116  0.036  1.0
  O  O5  1  0.884  0.762  0.964  1.0
  O  O6  1  0.791  0.363  0.646  1.0
[/CIF]
.
The material described by Nb2O5 crystallizes in the monoclinic C2 space group. Nb(1) is bonded in a 7-coordinate geometry to two equivalent O(1), two equivalent O(3), and three equivalent O(2) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Nb(1) atoms to form distorted corner-sharing ONb4 tetrahedra. In the second O site, O(2) is bonded in a 3-coordinate geometry to three equivalent Nb(1) atoms. In the third O site, O(3) is bonded in a water-like geometry to two equivalent Nb(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Nb2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.056
_cell_length_b   4.056
_cell_length_c   5.845
_cell_angle_alpha   68.587
_cell_angle_beta   68.587
_cell_angle_gamma   80.705
_symmetry_Int_Tables_number   1
_cell_volume   83.305
_cell_formula_units_Z   1
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  0.850  0.771  0.295  1.0
  Nb  Nb1  1  0.229  0.150  0.705  1.0
  O  O2  1  0.283  0.717  0.500  1.0
  O  O3  1  0.637  0.209  0.354  1.0
  O  O4  1  0.238  0.116  0.036  1.0
  O  O5  1  0.884  0.762  0.964  1.0
  O  O6  1  0.791  0.363  0.646  1.0
[/CIF]
.