data_[Sr4Pu2Ag4Se8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Pu  1.2800  1.7500  0.9675
  Ag  1.9300  1.6000  1.0867
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [15.5364]
_cell_length_b [4.1903]
_cell_length_c [7.7629]
_cell_angle_alpha [90.0000]
_cell_angle_beta [112.2659]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Sr2Pu(AgSe2)2]
_chemical_formula_sum '[Sr4 Pu2 Ag4 Se8]'
_cell_volume [467.7030]
_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  0.1324  0.0000  0.5755  1
  Pu  Pu1  2  0.0000  0.0000  0.0000  1
  Ag  Ag2  4  0.1840  0.5000  0.0013  1
  Se  Se3  4  0.0126  0.5000  0.7361  1
  Se  Se4  4  0.2079  0.0000  0.2435  1
]