data_Na2CuW
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.81
_cell_length_b   4.81
_cell_length_c   6.3
_cell_angle_alpha   94.13
_cell_angle_beta   94.13
_cell_angle_gamma   31.16
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2CuW
_chemical_formula_sum   'Na2 Cu1 W1'
_cell_volume   75.21
_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  Na1  1  0.08  0.0  0.01  1.0
  Na  Na2  1  0.96  0.0  0.64  1.0
  Cu  Cu0  1  0.82  0.0  0.94  1.0
  W  W3  1  0.34  0.0  0.83  1.0

data_Na2CuW
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.58
_cell_length_b   4.81
_cell_length_c   6.3
_cell_angle_alpha   94.13
_cell_angle_beta   90.0
_cell_angle_gamma   105.58
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2CuW
_chemical_formula_sum   'Na2 Cu1 W1'
_cell_volume   75.21
_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  0.04  0.36  1.0
  Na  Na1  1  0.0  0.92  0.99  1.0
  Cu  Cu2  1  0.0  0.18  0.06  1.0
  W  W3  1  0.0  0.66  0.17  1.0

Na Na Cu W