data_SrSi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.99
_cell_length_b   3.99
_cell_length_c   5.15
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrSi2
_chemical_formula_sum   'Sr1 Si2'
_cell_volume   71.04
_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  Sr2  1  0.0  0.0  0.0  1.0
  Si  Si0  1  1.0  0.15  0.18  1.0
  Si  Si1  1  0.0  0.31  0.96  1.0

data_SrSi2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.99
_cell_length_b   6.92
_cell_length_c   5.15
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SrSi2
_chemical_formula_sum   'Sr2 Si4'
_cell_volume   142.08
_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  0.0  1.0
  Si  Si1  2  0.15  0.0  0.18  1.0
  Si  Si2  2  0.31  0.0  0.96  1.0

Sr Si Si
Sr Si Si 0 2 o o - 0 1 - o o 1 2 + o - 