data_Y8Cu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.8
_cell_length_b   7.8
_cell_length_c   7.8
_cell_angle_alpha   95.69
_cell_angle_beta   95.69
_cell_angle_gamma   143.29
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Y8Cu
_chemical_formula_sum   'Y8 Cu1'
_cell_volume   269.48
_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  0.69  0.31  0.46  1.0
  Y  Y2  1  0.31  0.69  0.46  1.0
  Y  Y3  1  0.45  0.0  0.0  1.0
  Y  Y4  1  0.69  0.69  0.46  1.0
  Y  Y5  1  0.0  0.45  0.0  1.0
  Y  Y6  1  0.55  0.55  0.0  1.0
  Y  Y7  1  0.02  0.0  0.0  1.0
  Y  Y8  1  0.0  0.02  0.0  1.0
  Cu  Cu0  1  0.0  0.0  0.0  1.0

data_Y8Cu
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.91
_cell_length_b   14.81
_cell_length_c   7.8
_cell_angle_alpha   90.0
_cell_angle_beta   108.35
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Y8Cu
_chemical_formula_sum   'Y16 Cu2'
_cell_volume   538.96
_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  0.27  0.27  0.0  1.0
  Y  Y1  4  0.46  0.31  0.46  1.0
  Y  Y2  4  0.49  0.49  0.0  1.0
  Y  Y3  2  0.27  0.5  0.46  1.0
  Y  Y4  2  0.45  0.0  0.0  1.0
  Cu  Cu5  2  0.0  0.0  0.0  1.0

Y Y Y Y Y Y Y Y Cu