data_Na2TaAg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.74
_cell_length_b   5.58
_cell_length_c   5.49
_cell_angle_alpha   90.0
_cell_angle_beta   93.03
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2TaAg
_chemical_formula_sum   'Na2 Ta1 Ag1'
_cell_volume   83.88
_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  0.38  0.79  0.12  1.0
  Na  Na2  1  0.07  0.79  0.37  1.0
  Ta  Ta3  1  0.23  0.0  0.74  1.0
  Ag  Ag0  1  0.0  0.0  0.0  1.0

data_Na2TaAg
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.74
_cell_length_b   5.49
_cell_length_c   5.58
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   93.03
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2TaAg
_chemical_formula_sum   'Na2 Ta1 Ag1'
_cell_volume   83.88
_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  0.62  0.88  0.21  1.0
  Na  Na1  1  0.93  0.63  0.21  1.0
  Ta  Ta2  1  0.77  0.26  0.0  1.0
  Ag  Ag3  1  0.0  0.0  0.0  1.0

Na Na Ta Ag