data_[Si4H8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Si  1.9000  1.1000  0.5400
  H  2.2000  0.2500  0.0000
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [8.5406]
_cell_length_b [3.9542]
_cell_length_c [4.9503]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.5185]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [SiH2]
_chemical_formula_sum '[Si4 H8]'
_cell_volume [167.1721]
_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
[
  Si  Si0  4  0.2359  0.5000  0.3713  1.0
  H  H1  4  0.0777  0.5000  0.2373  1.0
  H  H2  4  0.1452  0.0000  0.8485  1.0
]