[CIF]
data_NaSi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.39290828
_cell_length_b   6.39290828
_cell_length_c   6.29022021
_cell_angle_alpha   104.72583962
_cell_angle_beta   104.72583962
_cell_angle_gamma   27.37499828
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaSi2
_chemical_formula_sum   'Na2 Si4'
_cell_volume   114.08988975
_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
  Na  Na0  1  5.89679939  -0.00000000  1.58137240  1
  Na  Na1  1  4.88023685  0.00000000  4.48975853  1
  Si  Si2  1  8.57662976  0.00000000  5.63588843  1
  Si  Si3  1  1.48199847  0.00000000  3.77863149  1
  Si  Si4  1  9.29503777  0.00000000  2.29249944  1
  Si  Si5  1  2.20040648  0.00000000  0.43524250  1
[/CIF]
