data_Na2SrFe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.03
_cell_length_b   7.03
_cell_length_c   7.03
_cell_angle_alpha   149.79
_cell_angle_beta   134.97
_cell_angle_gamma   55.19
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2SrFe
_chemical_formula_sum   'Na2 Sr1 Fe1'
_cell_volume   123.18
_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  0.83  0.0  0.6  1.0
  Na  Na2  1  0.0  0.69  0.64  1.0
  Sr  Sr3  1  0.0  0.0  0.23  1.0
  Fe  Fe0  1  0.0  0.0  0.0  1.0

data_Na2SrFe
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.67
_cell_length_b   5.39
_cell_length_c   7.03
_cell_angle_alpha   112.52
_cell_angle_beta   105.11
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2SrFe
_chemical_formula_sum   'Na2 Sr1 Fe1'
_cell_volume   123.18
_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  0.24  0.4  0.24  1.0
  Na  Na1  1  0.36  0.06  0.06  1.0
  Sr  Sr2  1  0.77  0.77  0.77  1.0
  Fe  Fe3  1  0.0  0.0  0.0  1.0

Na Na Sr Fe