data_[Si4Ge4P10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Si  1.9000  1.1000  0.5400
  Ge  2.0100  1.2500  0.7700
  P  2.1900  1.0000  0.5500
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [19.5041]
_cell_length_b [3.5511]
_cell_length_c [6.1187]
_cell_angle_alpha [90.0000]
_cell_angle_beta [104.0302]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Si2Ge2P5]
_chemical_formula_sum '[Si4 Ge4 P10]'
_cell_volume [411.1458]
_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
[
  Si  Si0  4  0.0771  0.5000  0.2594  1
  Ge  Ge1  4  0.1083  0.0000  0.8520  1
  P  P2  4  0.1227  0.0000  0.4910  1
  P  P3  4  0.1658  0.5000  0.0687  1
  P  P4  2  0.0000  0.0000  0.0000  1
]