data_[Sr4Al4O10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Al  1.6100  1.2500  0.6750
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [10.5216]
_cell_length_b [3.8456]
_cell_length_c [6.0349]
_cell_angle_alpha [90.0000]
_cell_angle_beta [104.1891]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Sr2Al2O5]
_chemical_formula_sum '[Sr4 Al4 O10]'
_cell_volume [236.7306]
_cell_formula_units_Z [2]
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  Sr0  4  0.1050  0.5000  0.3294  1
  Al  Al1  4  0.1523  0.0000  0.8945  1
  O  O2  4  0.1449  0.0000  0.5973  1
  O  O3  4  0.1726  0.5000  0.9452  1
  O  O4  2  0.0000  0.0000  0.0000  1
]