data_Sr2AlCl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.82
_cell_length_b   5.82
_cell_length_c   3.61
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr2AlCl
_chemical_formula_sum   'Sr2 Al1 Cl1'
_cell_volume   122.37
_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  0.91  0.0  0.81  1.0
  Sr  Sr3  1  0.0  0.91  0.81  1.0
  Al  Al0  1  0.0  0.0  0.0  1.0
  Cl  Cl1  1  0.91  0.91  0.0  1.0

data_Sr2AlCl
_symmetry_space_group_name_H-M   Cm
_cell_length_a   8.23
_cell_length_b   8.23
_cell_length_c   3.61
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Sr2AlCl
_chemical_formula_sum   'Sr4 Al2 Cl2'
_cell_volume   244.74
_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  4  0.45  0.45  0.81  1.0
  Al  Al1  2  0.0  0.0  0.0  1.0
  Cl  Cl2  2  0.41  0.5  0.0  1.0

Sr Sr Al Cl
Sr Sr Al Cl 0 1 + - o 0 3 o - + 0 2 + o + 1 3 - o + 1 2 o + + 2 3 - - o 