O Si 
 1.0000000000000000
     6.1457644632768682   -0.0000000000000000    0.0000000000000000
    -0.0000000000000000    4.7450673444044451    0.0000000000000000
     0.0000000000000000    0.0000000000000000    9.7844965178056231
 O   Si 
  16   8
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  3.0728822316384510 -0.0000000000000000  0.0000000000000000   T   T   T
  0.0000000000000000  0.0000000000000000  4.8922482589028196   T   T   T
  3.0728822316384510 -0.0000000000000000  4.8922482589028196   T   T   T
 -0.0000000000000000  2.3725336722022146  0.0000000000000000   T   T   T
  3.0728822316384510  2.3725336722022146  0.0000000000000000   T   T   T
 -0.0000000000000000  2.3725336722022146  4.8922482589028196   T   T   T
  3.0728822316384510  2.3725336722022146  4.8922482589028196   T   T   T
  0.0000000000000000  1.7630312876707328  2.4461241294514098   T   T   T
  3.0728822316384510  2.9820360567337190  2.4461241294514098   T   T   T
 -0.0000000000000000  2.9820360567337145  7.3383723883542187   T   T   T
  3.0728822316384510  1.7630312876707315  7.3383723883542187   T   T   T
  1.5364411158192255  0.0000000000000000  8.0430326742375780   T   T   T
  4.6093233474577451 -0.0000000000000000  6.6337121024709642   T   T   T
  4.6093233474577451  0.0000000000000000  1.7414638435681344   T   T   T
  1.5364411158192255 -0.0000000000000000  3.1507844153346909   T   T   T
  0.4660328937446743  3.6314830580389765  8.7443677793125136   T   T   T
  2.6068493378938355  1.1135842863654690  8.7443677793125136   T   T   T
  5.6797315695323096  3.6314830580389756  5.9323769973959477   T   T   T
  3.5389151253831561  1.1135842863654681  5.9323769973959477   T   T   T
  5.6797315695323096  1.1135842863654690  1.0401287384931281   T   T   T
  3.5389151253831561  3.6314830580389765  1.0401287384931277   T   T   T
  0.4660328937446743  1.1135842863654681  3.8521195204097185   T   T   T
  2.6068493378938355  3.6314830580389756  3.8521195204097185   T   T   T