data_[Sr4Ge8As4Se24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Ge  2.0100  1.2500  0.7700
  As  2.1800  1.1500  0.6600
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [14.3583]
_cell_length_b [10.7228]
_cell_length_c [8.5293]
_cell_angle_alpha [90.0000]
_cell_angle_beta [116.8467]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [SrGe2AsSe6]
_chemical_formula_sum '[Sr4 Ge8 As4 Se24]'
_cell_volume [1171.6419]
_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  0.1845  0.2500  1
  Ge  Ge1  8  0.2128  0.4208  0.1673  1
  As  As2  4  0.0000  0.2430  0.7500  1
  Se  Se3  8  0.0930  0.0865  0.6575  1
  Se  Se4  8  0.1515  0.2118  0.0849  1
  Se  Se5  8  0.1552  0.4437  0.4077  1
]