data_SrSi3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.0
_cell_length_b   6.0
_cell_length_c   6.0
_cell_angle_alpha   41.33
_cell_angle_beta   41.33
_cell_angle_gamma   41.33
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrSi3
_chemical_formula_sum   'Sr1 Si3'
_cell_volume   85.04
_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
  Sr  Sr3  1  0.0  0.0  0.22  1.0
  Si  Si0  1  0.0  0.0  0.86  1.0
  Si  Si1  1  0.0  0.0  0.0  1.0
  Si  Si2  1  0.0  0.0  0.57  1.0

data_SrSi3
_symmetry_space_group_name_H-M   Cm
_cell_length_a   7.33
_cell_length_b   4.23
_cell_length_c   6.0
_cell_angle_alpha   90.0
_cell_angle_beta   114.05
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SrSi3
_chemical_formula_sum   'Sr2 Si6'
_cell_volume   170.09
_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
  Sr  Sr0  2  0.0  0.0  0.78  1.0
  Si  Si1  2  0.0  0.0  0.0  1.0
  Si  Si2  2  0.0  0.0  0.14  1.0
  Si  Si3  2  0.0  0.0  0.43  1.0

Sr Si Si Si