O Si 
 1.0000000000000000
     8.6464644656034473   -0.0000000000000000    0.0000000000000000
     0.0000000000000000    5.3603889432431098    0.0000000000000000
     0.0000000000000000    0.0000000000000000    9.8645410011866392
 O   Si 
  16   8
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  4.3232322328017245 -0.0000000000000000  0.0000000000000000   T   T   T
  0.0000000000000000  0.0000000000000000  4.9322705005933214   T   T   T
  4.3232322328017245 -0.0000000000000000  4.9322705005933214   T   T   T
  0.0000000000000000  2.6801944716215553  0.0000000000000000   T   T   T
  4.3232322328017245  2.6801944716215553  0.0000000000000000   T   T   T
  0.0000000000000000  2.6801944716215553  4.9322705005933214   T   T   T
  4.3232322328017245  2.6801944716215553  4.9322705005933214   T   T   T
  0.0000000000000000  1.0714110961496763  2.4661352502966607   T   T   T
  4.3232322328017245  4.2889778470934372  2.4661352502966607   T   T   T
 -0.0000000000000000  4.2889778470934372  7.3984057508899808   T   T   T
  4.3232322328017245  1.0714110961496763  7.3984057508899808   T   T   T
  2.1616161164008623 -0.0000000000000000  8.4483436682244442   T   T   T
  6.4848483492025846  0.0000000000000000  6.3484678335555031   T   T   T
  6.4848483492025846 -0.0000000000000000  1.4161973329621906   T   T   T
  2.1616161164008623 -0.0000000000000000  3.5160731676311232   T   T   T
  0.7668815595665774  4.6462346957322449  8.7184615695294401   T   T   T
  3.5563506732351482  0.7141542475108701  8.7184615695294401   T   T   T
  7.8795829060368616  4.6462346957322449  6.0783499322505206   T   T   T
  5.0901137923682995  0.7141542475108701  6.0783499322505206   T   T   T
  7.8795829060368616  0.7141542475108701  1.1460794316572074   T   T   T
  5.0901137923682995  4.6462346957322449  1.1460794316572074   T   T   T
  0.7668815595665774  0.7141542475108701  3.7861910689361129   T   T   T
  3.5563506732351482  4.6462346957322449  3.7861910689361129   T   T   T