data_[K2Tm2Ge2Se8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Tm  1.2500  1.7500  1.0950
  Ge  2.0100  1.2500  0.7700
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [6.7225]
_cell_length_b [7.0601]
_cell_length_c [9.1398]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.6762]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [KTmGeSe4]
_chemical_formula_sum '[K2 Tm2 Ge2 Se8]'
_cell_volume [413.3095]
_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  0.2439  0.2500  0.0572  1.0
  Tm  Tm1  2  0.2244  0.2500  0.5516  1.0
  Ge  Ge2  2  0.2287  0.7500  0.3325  1.0
  Se  Se3  4  0.0126  0.5080  0.7068  1.0
  Se  Se4  2  0.4350  0.7500  0.1667  1.0
  Se  Se5  2  0.4501  0.7500  0.5870  1.0
]