O Si 
 1.0000000000000000
     7.0057662010723760   -0.0000000000000000   -0.0000000000000000
     0.0000000000000000    7.0057662010723778   -0.0000000000000000
     0.0000000000000000   -0.0000000000000000    6.9619516260317056
 O   Si 
  16   8
Selective dynamics
Cartesian
  5.9170766433845126  4.5915726582241971  1.7404879065079055   T   T   T
  1.0886895576880544  2.4141935428480341  1.7404879065079057   T   T   T
  4.5915726582242886  1.0886895576880571  5.2214637195236273   T   T   T
  2.4141935428480541  5.9170766433844468  5.2214637195236273   T   T   T
  0.0000000000000000  3.5028831005360486  6.7078650852016573   T   T   T
  3.5028831005360779 -0.0000000000000000  0.2540865408296143   T   T   T
  3.5028831005360779 -0.0000000000000000  3.2268892721862188   T   T   T
 -0.0000000000000000  3.5028831005360486  3.7350623538449210   T   T   T
  4.7799597366156341  2.4554577611574264  0.4790971334638262   T   T   T
  2.2258064644571607  4.5503084399147919  0.4790971334638253   T   T   T
  2.4554577611574708  2.2258064644571567  6.4828544925675864   T   T   T
  4.5503084399148888  4.7799597366155337  6.4828544925675864   T   T   T
  1.2770766360790822  1.0474253393787976  3.9600729464785611   T   T   T
  5.7286895649932674  5.9583408616937170  3.9600729464785602   T   T   T
  5.9583408616936939  1.2770766360790489  3.0018786795519370   T   T   T
  1.0474253393788011  5.7286895649931768  3.0018786795519370   T   T   T
  5.5653608023199190  3.8560461461249895  0.3397093192962569   T   T   T
  1.4404053987524208  3.1497200549465454  0.3397093192962575   T   T   T
  3.8560461461250375  1.4404053987523933  6.6222423067350809   T   T   T
  3.1497200549465973  5.5653608023197743  6.6222423067350773   T   T   T
  2.0624777017839984  6.6526031554829190  3.8206851323116933   T   T   T
  4.9432884992884478  0.3531630455896306  3.8206851323116915   T   T   T
  0.3531630455896245  2.0624777017840032  3.1412664937195514   T   T   T
  6.6526031554829084  4.9432884992885429  3.1412664937195522   T   T   T