data_[Sr4Ac2Ag4]
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
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [6.5275]
_cell_length_b [4.7861]
_cell_length_c [12.1073]
_cell_angle_alpha [90.0000]
_cell_angle_beta [95.6731]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Sr2AcAg2]
_chemical_formula_sum '[Sr4 Ac2 Ag4]'
_cell_volume [376.3998]
_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  2  0.1116  0.2500  0.8769  1
  Sr  Sr1  2  0.2548  0.2500  0.5493  1
  Ac  Ac2  2  0.3926  0.2500  0.2096  1
  Ag  Ag3  2  0.2227  0.7500  0.3604  1
  Ag  Ag4  2  0.3793  0.7500  0.0232  1
]