O Si 
 1.0000000000000000
     8.4680644495875050    0.0000000000000000    0.0000000000000000
    -4.2340322247937525    7.3335589342266676   -0.0000000000000000
    -0.0000000000000000   -0.0000000000000000    4.4476049845387022
 O   Si 
  12   6
Selective dynamics
Cartesian
  4.2340322247937525  0.0000000000000000  0.0000000000000000   T   T   T
 -2.1170161123968754  3.6667794671133365 -0.0000000000000000   T   T   T
  2.1170161123968763  3.6667794671133365 -0.0000000000000000   T   T   T
  4.2340322247937525  0.0000000000000000  2.2238024922693511   T   T   T
 -2.1170161123968754  3.6667794671133365  2.2238024922693511   T   T   T
  2.1170161123968763  3.6667794671133365  2.2238024922693511   T   T   T
 -2.1122538909203490  6.1085496420041503  0.0000000000000000   T   T   T
  0.0000000000000005  2.4500185844450502 -0.0000000000000000   T   T   T
  2.1122538909203499  6.1085496420041503 -0.0000000000000000   T   T   T
  6.3462861157141024  1.2250092922225251 -0.0000000000000000   T   T   T
  4.2340322247937516  4.8835403497816312  0.0000000000000000   T   T   T
  2.1217783338734022  1.2250092922225255  0.0000000000000000   T   T   T
  2.8829522779564858  0.0000000000000000  0.7385518553761071   T   T   T
 -1.4414761389782418  2.4967099106085335  0.7385518553761071   T   T   T
  2.7925560858155101  4.8368490236181430  0.7385518553761071   T   T   T
 -2.7925560858155092  4.8368490236181430  3.7090531291625948   T   T   T
  5.5851121716310201  0.0000000000000000  3.7090531291625948   T   T   T
  1.4414761389782431  2.4967099106085335  3.7090531291625948   T   T   T