O Si 
 1.0000000000000000
     7.3218578439746373    0.0000000000000000   -0.0000000000000000
    -3.6609289219873187    6.3409148957803927   -0.0000000000000000
     0.0000000000000000   -0.0000000000000000    7.0123677061885274
 O   Si 
  12   6
Selective dynamics
Cartesian
  2.3158904451426223  0.0000000000000000 -0.0000000000000000   T   T   T
 -1.1579452225713116  2.0056199578751639  4.6749118041256832   T   T   T
  2.5029836994160033  4.3352949379052284  2.3374559020628416   T   T   T
  5.0059673988320110  0.0000000000000000  3.5061838530942624   T   T   T
 -2.5029836994160068  4.3352949379052284  1.1687279510314208   T   T   T
  1.1579452225713103  2.0056199578751639  5.8436397551571035   T   T   T
  3.6609289219873182  1.4019814286012859  5.2592757796413956   T   T   T
  4.2772418501782639  2.4694667335895528  2.9218198775785509   T   T   T
  3.0446159937963699  2.4694667335895528  0.5843639755157098   T   T   T
 -0.0000000000000014  4.9389334671791056  1.7530919265471312   T   T   T
 -0.6163129281909459  3.8714481621908399  6.4280037306728151   T   T   T
  0.6163129281909449  3.8714481621908403  4.0905478286099743   T   T   T
 -0.0000000000000005  2.9605453625503917  5.2592757796413956   T   T   T
  1.0970214289624656  4.8606422145052015  2.9218198775785509   T   T   T
 -1.0970214289624691  4.8606422145052015  0.5843639755157098   T   T   T
  3.6609289219873156  3.3803695332300019  1.7530919265471312   T   T   T
  2.5639074930248502  1.4802726812751958  6.4280037306728151   T   T   T
  4.7579503509497876  1.4802726812751958  4.0905478286099743   T   T   T