data_[Sm4Al4As4O20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Al  1.6100  1.2500  0.6750
  As  2.1800  1.1500  0.6600
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [7.0862]
_cell_length_b [8.5918]
_cell_length_c [7.4997]
_cell_angle_alpha [90.0000]
_cell_angle_beta [117.9713]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [SmAlAsO5]
_chemical_formula_sum '[Sm4 Al4 As4 O20]'
_cell_volume [403.2675]
_cell_formula_units_Z [4]
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
[
  Sm  Sm0  4  0.0000  0.3146  0.7500  1
  Al  Al1  4  0.0000  0.0000  0.0000  1
  As  As2  4  0.0000  0.2994  0.2500  1
  O  O3  8  0.1067  0.2117  0.0761  1
  O  O4  8  0.1947  0.4392  0.4027  1
  O  O5  4  0.0000  0.0487  0.7500  1
]