data_Dy(FeSi)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.52
_cell_length_b   5.52
_cell_length_c   5.52
_cell_angle_alpha   137.91
_cell_angle_beta   137.91
_cell_angle_gamma   61.04
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Dy(FeSi)2
_chemical_formula_sum   'Dy1 Fe2 Si2'
_cell_volume   74.7
_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
  Dy  Dy0  1  0.0  0.0  0.0  1.0
  Fe  Fe1  1  0.0  0.98  0.38  1.0
  Fe  Fe2  1  0.98  0.0  0.38  1.0
  Si  Si3  1  0.0  0.0  0.03  1.0
  Si  Si4  1  0.0  0.0  0.48  1.0

data_Dy(FeSi)2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.61
_cell_length_b   5.61
_cell_length_c   5.52
_cell_angle_alpha   90.0
_cell_angle_beta   120.52
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Dy(FeSi)2
_chemical_formula_sum   'Dy2 Fe4 Si4'
_cell_volume   149.41
_cell_formula_units_Z   2
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
  Dy  Dy0  2  0.0  0.0  0.0  1.0
  Fe  Fe1  4  0.11  0.49  0.6  1.0
  Si  Si2  2  0.02  0.5  0.52  1.0
  Si  Si3  2  0.47  0.5  0.97  1.0

Dy Fe Fe Si Si
Dy Fe Fe Si Si 0 3 o o o 1 2 - + o 1 4 o + o 2 4 + o o 