data_[Si2Cl8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Si  1.9000  1.1000  0.5400
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [P1]
_cell_length_a [6.5812]
_cell_length_b [20.2866]
_cell_length_c [20.2866]
_cell_angle_alpha [120.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [1]
_chemical_formula_structural [SiCl4]
_chemical_formula_sum '[Si2 Cl8]'
_cell_volume [2345.5885]
_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  1  0.0365  0.5816  0.5750  1
  Si  Si1  1  0.8944  0.4646  0.5487  1
  Cl  Cl2  1  0.1170  0.3952  0.5505  1
  Cl  Cl3  1  0.1679  0.6333  0.6806  1
  Cl  Cl4  1  0.2541  0.5639  0.4953  1
  Cl  Cl5  1  0.3507  0.4342  0.3034  1
  Cl  Cl6  1  0.4808  0.3792  0.2009  1
  Cl  Cl7  1  0.6812  0.4835  0.6298  1
  Cl  Cl8  1  0.7604  0.4138  0.4437  1
  Cl  Cl9  1  0.8144  0.6507  0.5720  1
]