data_Y8Mg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.92
_cell_length_b   7.92
_cell_length_c   7.92
_cell_angle_alpha   95.8
_cell_angle_beta   95.8
_cell_angle_gamma   142.92
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Y8Mg
_chemical_formula_sum   'Y8 Mg1'
_cell_volume   283.64
_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
  Y  Y1  1  0.54  0.0  0.0  1.0
  Y  Y2  1  0.08  0.0  0.0  1.0
  Y  Y3  1  0.0  0.54  0.0  1.0
  Y  Y4  1  0.54  0.54  0.0  1.0
  Y  Y5  1  0.77  0.23  0.52  1.0
  Y  Y6  1  0.0  0.08  0.0  1.0
  Y  Y7  1  0.23  0.77  0.52  1.0
  Y  Y8  1  0.77  0.77  0.52  1.0
  Mg  Mg0  1  0.0  0.0  0.0  1.0

data_Y8Mg
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.03
_cell_length_b   15.01
_cell_length_c   7.92
_cell_angle_alpha   90.0
_cell_angle_beta   108.54
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Y8Mg
_chemical_formula_sum   'Y16 Mg2'
_cell_volume   567.28
_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
  Y  Y0  4  0.02  0.27  0.52  1.0
  Y  Y1  4  0.23  0.77  0.0  1.0
  Y  Y2  4  0.46  0.46  0.0  1.0
  Y  Y3  2  0.25  0.5  0.52  1.0
  Y  Y4  2  0.46  0.0  -0.0  1.0
  Mg  Mg5  2  0.0  0.0  0.0  1.0

Y Y Y Y Y Y Y Y Mg