The structure described by SiO2 is quartz (beta)-like structured and crystallizes in the cubic I-43m space group. Si(1) is bonded to four equivalent O(1) atoms to form corner-sharing SiO4 tetrahedra. O(1) is bonded in a bent 150 degrees geometry to two equivalent Si(1) atoms. is represented by the CIF file [CIF]
data_SiO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.722
_cell_length_b   7.722
_cell_length_c   7.722
_cell_angle_alpha   109.471
_cell_angle_beta   109.471
_cell_angle_gamma   109.471
_symmetry_Int_Tables_number   1
_cell_volume   354.506
_cell_formula_units_Z   6
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  0.500  0.750  0.250  1.0
  Si  Si1  1  0.750  0.500  0.250  1.0
  Si  Si2  1  0.250  0.750  0.500  1.0
  Si  Si3  1  0.250  0.500  0.750  1.0
  Si  Si4  1  0.500  0.250  0.750  1.0
  Si  Si5  1  0.750  0.250  0.500  1.0
  O  O6  1  0.663  0.368  0.000  1.0
  O  O7  1  0.294  0.632  0.632  1.0
  O  O8  1  0.663  0.000  0.368  1.0
  O  O9  1  0.368  0.663  0.000  1.0
  O  O10  1  0.000  0.663  0.368  1.0
  O  O11  1  0.632  0.294  0.632  1.0
  O  O12  1  0.632  0.632  0.294  1.0
  O  O13  1  0.000  0.368  0.663  1.0
  O  O14  1  0.368  0.000  0.663  1.0
  O  O15  1  0.337  0.337  0.706  1.0
  O  O16  1  0.706  0.337  0.337  1.0
  O  O17  1  0.337  0.706  0.337  1.0
[/CIF]
.
The structure described by SiO2 is quartz (beta)-like structured and crystallizes in the cubic I-43m space group. Si(1) is bonded to four equivalent O(1) atoms to form corner-sharing SiO4 tetrahedra. O(1) is bonded in a bent 150 degrees geometry to two equivalent Si(1) atoms. is represented by the CIF file [CIF]
data_SiO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.722
_cell_length_b   7.722
_cell_length_c   7.722
_cell_angle_alpha   109.471
_cell_angle_beta   109.471
_cell_angle_gamma   109.471
_symmetry_Int_Tables_number   1
_cell_volume   354.506
_cell_formula_units_Z   6
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  0.500  0.750  0.250  1.0
  Si  Si1  1  0.750  0.500  0.250  1.0
  Si  Si2  1  0.250  0.750  0.500  1.0
  Si  Si3  1  0.250  0.500  0.750  1.0
  Si  Si4  1  0.500  0.250  0.750  1.0
  Si  Si5  1  0.750  0.250  0.500  1.0
  O  O6  1  0.663  0.368  0.000  1.0
  O  O7  1  0.294  0.632  0.632  1.0
  O  O8  1  0.663  0.000  0.368  1.0
  O  O9  1  0.368  0.663  0.000  1.0
  O  O10  1  0.000  0.663  0.368  1.0
  O  O11  1  0.632  0.294  0.632  1.0
  O  O12  1  0.632  0.632  0.294  1.0
  O  O13  1  0.000  0.368  0.663  1.0
  O  O14  1  0.368  0.000  0.663  1.0
  O  O15  1  0.337  0.337  0.706  1.0
  O  O16  1  0.706  0.337  0.337  1.0
  O  O17  1  0.337  0.706  0.337  1.0
[/CIF]
.