data_[Pu3Mn6Si3O18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pu  1.2800  1.7500  0.9675
  Mn  1.5500  1.4000  0.6483
  Si  1.9000  1.1000  0.5400
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [5.3277]
_cell_length_b [5.3277]
_cell_length_c [14.0495]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [PuMn2SiO6]
_chemical_formula_sum '[Pu3 Mn6 Si3 O18]'
_cell_volume [345.3573]
_cell_formula_units_Z [3]
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
[
  Pu  Pu0  3  0.0000  0.0000  0.1857  1
  Mn  Mn1  3  0.0000  0.0000  0.4607  1
  Mn  Mn2  3  0.0000  0.0000  0.9682  1
  Si  Si3  3  0.0000  0.0000  0.6805  1
  O  O4  9  0.0275  0.3982  0.4158  1
  O  O5  9  0.0726  0.6880  0.2653  1
]