data_PCOD3002753
_publ_section_title
;
Structure prediction by GRINSP 2.00 - 2006 (A. Le Bail)
SiO2           PCOD3002753 R =  0.0144
Probable space group: P 2/C
;
_chemical_formula_sum  "Si O2"
_cell_formula_units_Z    8
_cell_length_a          7.3317
_cell_length_b         20.5260
_cell_length_c          7.2762
_cell_angle_alpha     90.000
_cell_angle_beta      95.323
_cell_angle_gamma     90.000
_cell_volume          1090.28
_symmetry_space_group_name_H-M   "P 1"
_symmetry_Int_Tables_number  1
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Si1      0.22910   0.46013   0.96895
Si2      0.72927   0.46258   0.47374
Si3      0.79461   0.54724   0.04476
Si4      0.28939   0.54503   0.53649
Si5      0.04190   0.45874   0.28848
Si6     -0.02086  -0.45226  -0.27449
Si7      0.47749   0.54743   0.21951
Si8      0.54359  -0.53885  -0.21109
O1      0.13428   0.42089   1.12687
O2      0.32444   0.52505   1.05876
O3      0.07123   0.48174   0.81188
O4      0.38619   0.41983   0.87688
O5      0.57110   0.48304   0.31558
O6      0.88253   0.42051   0.38164
O7      0.63888   0.42180   0.63187
O8      0.82071   0.52753   0.56714
O9      0.63744   0.58827   0.13420
O10      0.95055   0.52509   0.20289
O11      0.69811   0.48344  -0.05156
O12      0.89038   0.58687  -0.11239
O13      0.19924   0.47922   0.44744
O14      0.37864   0.58543   0.37680
O15      0.13610   0.58661   0.62948
O16      0.44944   0.52550   0.69424
#
#_symmetry_space_group_name_H-M  P 2/C
#_symmetry_Int_Tables_number   13
#
#   Coordination Sequence :
#
# PCOD3002753 SiO2            R =  0.0144   13
#   1
#   8
#    4   8  12  16  20  24  28  32  36  40
#
#_framework_density    7.34
#
