data_CuSi5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.56
_cell_length_b   4.56
_cell_length_c   4.69
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CuSi5
_chemical_formula_sum   'Cu1 Si5'
_cell_volume   84.35
_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
  Cu  Cu0  1  0.0  0.0  0.0  1.0
  Si  Si1  1  0.05  0.0  0.35  1.0
  Si  Si2  1  0.75  0.3  0.35  1.0
  Si  Si3  1  0.47  0.64  0.35  1.0
  Si  Si4  1  0.28  0.32  0.0  1.0
  Si  Si5  1  0.0  0.63  0.0  1.0

data_CuSi5
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.56
_cell_length_b   4.56
_cell_length_c   4.69
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CuSi5
_chemical_formula_sum   'Cu1 Si5'
_cell_volume   84.35
_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
  Cu  Cu0  1  0.0  0.0  0.0  1.0
  Si  Si1  1  0.0  0.63  0.0  1.0
  Si  Si2  1  0.05  0.0  0.35  1.0
  Si  Si3  1  0.28  0.32  0.0  1.0
  Si  Si4  1  0.47  0.64  0.35  1.0
  Si  Si5  1  0.75  0.3  0.35  1.0

Cu Si Si Si Si Si