O Si 
 1.0000000000000000
     5.2867752371066681    0.0000000000000000    0.5047595715758155
     0.0000000000000000    5.1112975367703362    0.0000000000000000
    -6.0143945285461271    0.0000000000000000    7.2807997081798064
 O   Si 
   8   4
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
 -3.0071972642730636  0.0000000000000000  3.6403998540899032   T   T   T
  2.6433876185533340  2.5556487683851672  0.2523797857879130   T   T   T
 -0.3638096457197287  2.5556487683851672  3.8927796398778161   T   T   T
  0.0000000000000000  2.5556487683851672  0.0000000000000000   T   T   T
 -3.0071972642730636  2.5556487683851672  3.6403998540899032   T   T   T
 -1.5035986321365318  4.0433798171021724  1.8201999270449518   T   T   T
 -4.5107958964096007  1.0679177196681657  5.4605997811348548   T   T   T
  1.4744126829208448  1.3015050331328621  4.5836029787175949   T   T   T
 -5.2092292386333652  1.3015050331328626  6.8423561551279368   T   T   T
 -2.2020319743603007  3.8097925036374747  3.2019563010380341   T   T   T
  4.4816099471939141  3.8097925036374747  0.9432031246276946   T   T   T