# generated using pymatgen
data_Nb4O9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.05807600
_cell_length_b   5.62157066
_cell_length_c   6.97231032
_cell_angle_alpha   105.17793384
_cell_angle_beta   109.58518509
_cell_angle_gamma   91.13484558
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Nb4O9
_chemical_formula_sum   'Nb4 O9'
_cell_volume   179.00153773
_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  0.36940900  0.26306900  0.27874000  1.0
  Nb  Nb1  1  0.14937400  0.21372600  0.73258300  1.0
  Nb  Nb2  1  0.60821000  0.72626300  0.70039500  1.0
  Nb  Nb3  1  0.89108200  0.75839300  0.26828700  1.0
  O  O4  1  0.13307500  0.12680900  0.41048000  1.0
  O  O5  1  0.25718200  0.64478800  0.40845100  1.0
  O  O6  1  0.86846600  0.87598600  0.59548700  1.0
  O  O7  1  0.86952100  0.72627800  0.97928200  1.0
  O  O8  1  0.09896400  0.26029700  0.99997000  1.0
  O  O9  1  0.33022000  0.52218200  0.76881300  1.0
  O  O10  1  0.57365900  0.99396500  0.24201600  1.0
  O  O11  1  0.66223400  0.48134300  0.23695900  1.0
  O  O12  1  0.46259700  0.03491700  0.78922100  1.0