data_SrLaSi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.34
_cell_length_b   5.34
_cell_length_c   3.68
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrLaSi2
_chemical_formula_sum   'Sr1 La1 Si2'
_cell_volume   104.93
_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  0.0  1.0
  La  La0  1  0.67  0.67  0.0  1.0
  Si  Si1  1  0.67  0.0  0.84  1.0
  Si  Si2  1  0.0  0.67  0.84  1.0

data_SrLaSi2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   7.55
_cell_length_b   7.55
_cell_length_c   3.68
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SrLaSi2
_chemical_formula_sum   'Sr2 La2 Si4'
_cell_volume   209.85
_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
  La  La1  2  0.17  0.5  -0.0  1.0
  Si  Si2  4  0.33  0.33  0.84  1.0

Sr La Si Si
Sr La Si Si 0 2 - o - 0 3 o - - 1 3 + o - 1 2 o + - 