O Si 
 1.0000000000000000
     4.5190655457248878    0.0000000000000000    0.1209226337303145
     0.0000000000000000    4.4178941116969135    0.0000000000000000
    -5.7108008160230854    0.0000000000000001    8.4374956262481327
 O   Si 
   8   4
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
 -2.8554004080115400  0.0000000000000000  4.2187478131240663   T   T   T
  2.2595327728624444  2.2089470558484567  0.0604613168651619   T   T   T
 -0.5958676351490958  2.2089470558484567  4.2792091299892219   T   T   T
  0.0000000000000000  2.2089470558484567  0.0000000000000000   T   T   T
 -2.8554004080115400  2.2089470558484567  4.2187478131240663   T   T   T
 -1.4277002040057700  3.6554280242997619  2.1093739065620332   T   T   T
 -4.2831006120173116  0.7624660873971508  6.3281217196860933   T   T   T
  0.5522837835995190  1.1417856795332570  4.8910045837115961   T   T   T
 -4.5994194619092506  1.1417856795332566  7.8861614893909131   T   T   T
 -1.7440190538977127  3.2761084321636562  3.6674136762668517   T   T   T
  3.4076841916110614  3.2761084321636562  0.6722567705875367   T   T   T