data_Na2NbW
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.41
_cell_length_b   6.41
_cell_length_c   6.41
_cell_angle_alpha   152.56
_cell_angle_beta   139.08
_cell_angle_gamma   49.97
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2NbW
_chemical_formula_sum   'Na2 Nb1 W1'
_cell_volume   79.29
_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
  Na  Na0  1  0.52  0.0  0.97  1.0
  Na  Na1  1  0.0  0.24  0.84  1.0
  Nb  Nb2  1  0.0  0.0  0.0  1.0
  W  W3  1  0.0  0.0  0.81  1.0

data_Na2NbW
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.04
_cell_length_b   4.48
_cell_length_c   6.41
_cell_angle_alpha   110.46
_cell_angle_beta   103.72
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2NbW
_chemical_formula_sum   'Na2 Nb1 W1'
_cell_volume   79.29
_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
  Na  Na0  1  0.0  0.97  0.45  1.0
  Na  Na1  1  0.76  0.6  0.6  1.0
  Nb  Nb2  1  0.0  0.0  0.0  1.0
  W  W3  1  0.0  0.81  0.81  1.0

Na Na Nb W