data_Eu(SiAu)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.91
_cell_length_b   5.91
_cell_length_c   5.91
_cell_angle_alpha   136.49
_cell_angle_beta   136.49
_cell_angle_gamma   63.22
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Eu(SiAu)2
_chemical_formula_sum   'Eu1 Si2 Au2'
_cell_volume   96.59
_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
  Eu  Eu2  1  0.0  0.0  0.0  1.0
  Si  Si3  1  0.0  0.0  0.19  1.0
  Si  Si4  1  0.0  0.0  0.87  1.0
  Au  Au0  1  0.19  0.0  0.52  1.0
  Au  Au1  1  0.0  0.19  0.52  1.0

data_Eu(SiAu)2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.2
_cell_length_b   6.2
_cell_length_c   5.91
_cell_angle_alpha   90.0
_cell_angle_beta   121.61
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Eu(SiAu)2
_chemical_formula_sum   'Eu2 Si4 Au4'
_cell_volume   193.18
_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
  Eu  Eu0  2  0.0  0.0  0.0  1.0
  Si  Si1  2  0.13  0.0  0.13  1.0
  Si  Si2  2  0.31  0.5  0.81  1.0
  Au  Au3  4  0.08  0.4  0.67  1.0

Eu Si Si Au Au
Eu Si Si Au Au 0 2 o o - 0 1 o o o 1 4 o o o 1 3 o o o 3 4 o o o 