data_[Sr2Ac1Dy1Se4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Ac  1.1000  1.9500  1.2600
  Dy  1.2200  1.7500  1.1310
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [7.5104]
_cell_length_b [4.3259]
_cell_length_c [7.6066]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.0704]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [Sr2AcDySe4]
_chemical_formula_sum '[Sr2 Ac1 Dy1 Se4]'
_cell_volume [233.5713]
_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  Sr0  1  0.0000  0.5000  0.5000  1
  Sr  Sr1  1  0.5000  0.0000  0.5000  1
  Ac  Ac2  1  0.5000  0.5000  0.0000  1
  Dy  Dy3  1  0.0000  0.0000  0.0000  1
  Se  Se4  2  0.2320  0.5000  0.2362  1
  Se  Se5  2  0.2365  0.0000  0.7540  1
]