data_[Cs2Ac2Mg2Se6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  Ac  1.1000  1.9500  1.2600
  Mg  1.3100  1.5000  0.8600
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [10.0751]
_cell_length_b [4.5567]
_cell_length_c [10.6085]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.2171]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [CsAcMgSe3]
_chemical_formula_sum '[Cs2 Ac2 Mg2 Se6]'
_cell_volume [467.6529]
_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
[
  Cs  Cs0  2  0.1953  0.7500  0.2232  1
  Ac  Ac1  2  0.3357  0.2500  0.8522  1
  Mg  Mg2  2  0.0812  0.7500  0.6046  1
  Se  Se3  2  0.1223  0.7500  0.8520  1
  Se  Se4  2  0.1784  0.2500  0.5343  1
  Se  Se5  2  0.4569  0.2500  0.1524  1
]