O Si 
 1.0000000000000000
     5.1380817347146781   -0.0000000000000000    0.0000000000000000
    -2.5690408673573391    4.4497093089836106   -0.0000000000000000
    -0.0000000000000000    0.0000000000000000    8.6496472665188193
 O   Si 
   8   4
Selective dynamics
Cartesian
 -0.0000000256907288  2.9664728874881514  2.1624118166296951   T   T   T
  2.5690408416669746  1.4832364511602536  6.4872354498891340   T   T   T
  2.2163596030413144  0.0000000148323648 -0.0000000000000000   T   T   T
 -1.1081798400565055  1.9194237572361843 -0.0000000000000000   T   T   T
  1.4608610273008875  2.5302855814121874 -0.0000000000000000   T   T   T
  2.9217220802926636  0.0000000148323648  4.3248236332593901   T   T   T
 -1.4608610786821852  2.5302855814121874  4.3248236332593901   T   T   T
  1.1081797886752085  1.9194237572361843  4.3248236332593901   T   T   T
 -0.0000000256907288  2.9664728874881514  3.7785211237295790   T   T   T
  2.5690408416669746  1.4832364511602536  8.1033447569889105   T   T   T
  2.5690408416669746  1.4832364511602536  4.8711261427892154   T   T   T
 -0.0000000256907289  2.9664728874881519  0.5463025095298562   T   T   T