data_[Si10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Si  1.9000  1.1000  0.5400
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [6.1628]
_cell_length_b [3.8638]
_cell_length_c [9.1218]
_cell_angle_alpha [90.0000]
_cell_angle_beta [104.9610]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Si]
_chemical_formula_sum '[Si10]'
_cell_volume [209.8441]
_cell_formula_units_Z [10]
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  2  0.1035  0.2500  0.5360  1
  Si  Si1  2  0.1134  0.2500  0.9947  1
  Si  Si2  2  0.3073  0.2500  0.7975  1
  Si  Si3  2  0.4124  0.2500  0.4397  1
  Si  Si4  2  0.4571  0.2500  0.1906  1
]