data_FeCo
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.4
_cell_length_b   4.92
_cell_length_c   4.92
_cell_angle_alpha   89.8
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   FeCo
_chemical_formula_sum   'Fe4 Co4'
_cell_volume   82.28
_cell_formula_units_Z   4
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
  Fe  Fe4  1  0.0  0.0  0.76  1.0
  Fe  Fe5  1  0.0  0.28  0.48  1.0
  Fe  Fe6  1  0.7  0.0  0.49  1.0
  Fe  Fe7  1  0.0  0.72  0.48  1.0
  Co  Co0  1  0.7  0.27  0.22  1.0
  Co  Co1  1  0.0  0.0  0.23  1.0
  Co  Co2  1  0.7  0.73  0.22  1.0
  Co  Co3  1  0.7  0.0  0.01  1.0

data_FeCo
_symmetry_space_group_name_H-M   Pm
_cell_length_a   3.4
_cell_length_b   4.92
_cell_length_c   4.92
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   6
_chemical_formula_structural   FeCo
_chemical_formula_sum   'Fe4 Co4'
_cell_volume   82.28
_cell_formula_units_Z   4
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '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
  Fe  Fe0  2  0.0  0.28  0.48  1.0
  Fe  Fe1  1  0.0  0.0  0.76  1.0
  Fe  Fe2  1  0.7  0.0  0.49  1.0
  Co  Co3  2  0.7  0.27  0.22  1.0
  Co  Co4  1  0.0  0.0  0.23  1.0
  Co  Co5  1  0.7  0.0  0.01  1.0

Fe Fe Fe Fe Co Co Co Co