O Si 
 1.0000000000000000
     3.7768915358418540    0.0000000000000000    0.0000000000000000
    -0.0000000000000000    4.9805237314971098    0.0000000000000000
     0.0000000000000000    0.0000000000000000    4.6870844978063753
 O   Si 
   8   4
Selective dynamics
Cartesian
  1.1884852014125293  3.0580876541364148  0.4319913407157493   T   T   T
  0.6999605665083959  4.4126979431092490  2.7755335896189384   T   T   T
  2.5884063344293211  3.0580876541364148  1.9115509081874402   T   T   T
  3.0769309693334570  4.4126979431092490  4.2550931570906272   T   T   T
  2.5884063344293211  1.9224360773606974  4.2550931570906272   T   T   T
  3.0769309693334570  0.5678257883878587  1.9115509081874402   T   T   T
  1.1884852014125293  1.9224360773606974  2.7755335896189384   T   T   T
  0.6999605665083959  0.5678257883878585  0.4319913407157493   T   T   T
 -0.0000000000000000  4.0588775921452127  1.1717711244515943   T   T   T
  1.8884457679209263  3.4119080051004520  3.5153133733547848   T   T   T
  0.0000000000000000  0.9216461393518954  3.5153133733547848   T   T   T
  1.8884457679209263  1.5686157263966591  1.1717711244515943   T   T   T