data_FeCo
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.97
_cell_length_b   6.97
_cell_length_c   6.97
_cell_angle_alpha   33.41
_cell_angle_beta   33.41
_cell_angle_gamma   33.41
_symmetry_Int_Tables_number   1
_chemical_formula_structural   FeCo
_chemical_formula_sum   'Fe4 Co4'
_cell_volume   91.46
_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  0.32  1.0
  Fe  Fe5  1  0.0  0.0  0.39  1.0
  Fe  Fe6  1  0.0  0.0  0.92  1.0
  Fe  Fe7  1  0.0  0.0  0.49  1.0
  Co  Co0  1  0.0  0.0  0.01  1.0
  Co  Co1  1  0.0  0.0  0.29  1.0
  Co  Co2  1  0.0  0.0  0.8  1.0
  Co  Co3  1  0.0  0.0  0.82  1.0

data_FeCo
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.94
_cell_length_b   4.01
_cell_length_c   6.97
_cell_angle_alpha   90.0
_cell_angle_beta   109.39
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   FeCo
_chemical_formula_sum   'Fe8 Co8'
_cell_volume   182.92
_cell_formula_units_Z   8
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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  0.0  0.08  1.0
  Fe  Fe1  2  0.0  0.0  0.68  1.0
  Fe  Fe2  2  0.0  0.0  0.51  1.0
  Fe  Fe3  2  0.0  0.0  0.61  1.0
  Co  Co4  2  -0.0  0.0  0.2  1.0
  Co  Co5  2  -0.0  0.0  0.18  1.0
  Co  Co6  2  0.0  0.0  0.71  1.0
  Co  Co7  2  0.0  0.0  0.99  1.0

Fe Fe Fe Fe Co Co Co Co