data_[Er4Np2Mn2O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Np  1.3600  1.7500  1.0000
  Mn  1.5500  1.4000  0.6483
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [7.2375]
_cell_length_b [6.7599]
_cell_length_c [6.8806]
_cell_angle_alpha [90.0000]
_cell_angle_beta [94.8703]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Er2NpMnO8]
_chemical_formula_sum '[Er4 Np2 Mn2 O16]'
_cell_volume [335.4166]
_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
[
  Er  Er0  4  0.0296  0.5000  0.2666  1
  Np  Np1  2  0.0000  0.0000  0.0000  1
  Mn  Mn2  2  0.0000  0.0000  0.5000  1
  O  O3  4  0.0000  0.2870  0.5000  1
  O  O4  4  0.0000  0.2954  0.0000  1
  O  O5  4  0.1632  0.0000  0.7447  1
  O  O6  4  0.2037  0.0000  0.1982  1
]