data_[Sr8Mn4As4Se20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Mn  1.5500  1.4000  0.6483
  As  2.1800  1.1500  0.6600
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [4.2852]
_cell_length_b [17.8814]
_cell_length_c [12.5952]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Sr2MnAsSe5]
_chemical_formula_sum '[Sr8 Mn4 As4 Se20]'
_cell_volume [965.1058]
_cell_formula_units_Z [4]
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  0.0000  0.1147  0.6807  1
  Sr  Sr1  4  0.0000  0.1366  0.3195  1
  Mn  Mn2  4  0.0000  0.2136  0.0420  1
  As  As3  4  0.0000  0.4424  0.4380  1
  Se  Se4  4  0.0000  0.0700  0.0544  1
  Se  Se5  4  0.0000  0.2863  0.6617  1
  Se  Se6  4  0.0000  0.3195  0.3612  1
  Se  Se7  4  0.0000  0.3512  0.0027  1
  Se  Se8  4  0.0000  0.4914  0.7637  1
]