data_[K2Eu2Mn2Se8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Eu  1.2000  1.8500  1.1985
  Mn  1.5500  1.4000  0.6483
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [6.7961]
_cell_length_b [6.7508]
_cell_length_c [9.2170]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.4120]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [KEuMnSe4]
_chemical_formula_sum '[K2 Eu2 Mn2 Se8]'
_cell_volume [403.4965]
_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
[
  K  K0  2  0.2677  0.2500  0.0670  1
  Eu  Eu1  2  0.2306  0.2500  0.5450  1
  Mn  Mn2  2  0.2048  0.7500  0.3102  1
  Se  Se3  4  0.0138  0.5074  0.7345  1
  Se  Se4  2  0.3753  0.7500  0.5597  1
  Se  Se5  2  0.4096  0.7500  0.1594  1
]