O Si 
 1.0000000000000000
     7.7505375738225943    0.0000000000000000    0.0000000000000000
     0.0000000000000000    9.5749371551914724    0.0000000000000000
     0.0000000000000000    0.0000000000000000    4.5316732414869572
 O   Si 
  16   8
Selective dynamics
Cartesian
  1.9376343934556377  2.3937342887978565  1.1329183103717304   T   T   T
  5.8129031803668454  7.1812028663935479  1.1329183103717304   T   T   T
  5.8129031803668454  2.3937342887978565  3.3987549311152296   T   T   T
  1.9376343934556377  7.1812028663935479  3.3987549311152296   T   T   T
  2.2337060894455396  0.0000000000000000  0.0000000000000000   T   T   T
  5.5168314843769366  0.0000000000000000 -0.0000000000000000   T   T   T
  1.6415626974657072  4.7874685775957131  2.2658366207434608   T   T   T
  6.1089748763568492  4.7874685775957131  2.2658366207434608   T   T   T
  1.2494811520463553 -0.0000000000000000  2.2658366207434608   T   T   T
  6.5010564217761999 -0.0000000000000000  2.2658366207434608   T   T   T
  2.6257876348649059  4.7874685775957131 -0.0000000000000000   T   T   T
  5.1247499389576081  4.7874685775957131 -0.0000000000000000   T   T   T
  0.0000000000000000  1.1954168601152393  0.0000000000000000   T   T   T
  0.0000000000000000  8.3795202950762757  0.0000000000000000   T   T   T
  3.8752687869112754  3.5920517174804738  2.2658366207434608   T   T   T
  3.8752687869112754  5.9828854377109835  2.2658366207434608   T   T   T
  1.3475540090647922  0.9410901768915320  0.9393850669516848   T   T   T
  6.4029835647577054  8.6338469782998395  0.9393850669516848   T   T   T
  6.4029835647577054  0.9410901768915320  3.5922881745352941   T   T   T
  1.3475540090647922  8.6338469782998395  3.5922881745352941   T   T   T
  2.5277147778464841  3.8463784007041855  1.3264515537917996   T   T   T
  5.2228227959760751  5.7285587544872989  1.3264515537917996   T   T   T
  5.2228227959760751  3.8463784007041855  3.2052216876951727   T   T   T
  2.5277147778464841  5.7285587544872989  3.2052216876951727   T   T   T