data_SnMoW
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.14
_cell_length_b   3.14
_cell_length_c   6.66
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SnMoW
_chemical_formula_sum   'Sn1 Mo1 W1'
_cell_volume   56.95
_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
  Sn  Sn1  1  0.0  0.81  0.22  1.0
  Mo  Mo0  1  0.0  0.0  0.45  1.0
  W  W2  1  0.57  0.91  0.65  1.0

data_SnMoW
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.14
_cell_length_b   3.14
_cell_length_c   6.66
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SnMoW
_chemical_formula_sum   'Sn1 Mo1 W1'
_cell_volume   56.95
_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
  Sn  Sn0  1  0.0  0.81  0.22  1.0
  Mo  Mo1  1  0.0  0.0  0.45  1.0
  W  W2  1  0.57  0.91  0.65  1.0

Sn Mo W
Sn Mo W 0 1 o + o 1 2 - - o 