data_NaW
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.69
_cell_length_b   2.69
_cell_length_c   5.67
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   113.35
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaW
_chemical_formula_sum   'Na1 W1'
_cell_volume   37.75
_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  0.0  0.0  1.0
  W  W1  1  0.48  0.0  0.83  1.0

data_NaW
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.69
_cell_length_b   2.69
_cell_length_c   5.67
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   113.35
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaW
_chemical_formula_sum   'Na1 W1'
_cell_volume   37.75
_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  0.0  0.0  1.0
  W  W1  1  0.48  0.0  0.83  1.0

Na W
Na W 0 1 - o - 0 1 o o - 