O Si 
 1.0000000000000000
     8.0911459784133442    0.0000000000000000    0.2069466474831846
     0.0000000000000000    4.4034755273955932    0.0000000000000000
    -8.2628739647045073    0.0000000000000000    4.2643851325986075
 O   Si 
   8   4
Selective dynamics
Cartesian
  0.0000000000000000  3.8446930142657814  0.0000000000000000   T   T   T
 -4.1314369823522510  1.5834346312391165  2.1321925662993033   T   T   T
 -6.0061195554173548  1.0318586163785239  3.7301430223674976   T   T   T
  5.8343915691261925  1.0318586163785239  0.7411887577142999   T   T   T
 -1.4302794865833861  1.1198662023337576  2.8194526300397076   T   T   T
  1.2585515002922214  1.1198662023337576  1.6518791500420889   T   T   T
  2.2620262357731611  3.3289011945157010  1.5786637064445324   T   T   T
 -2.4337542220643220  3.3289011945157010  2.8926680736372594   T   T   T
 -1.6637477436984862 -0.0496096818031034  3.9717602460803043   T   T   T
  1.4920197574073215 -0.0496096818031033  0.4995715340014898   T   T   T
  2.3859800470262122  1.9689985409379702  2.5658453112638000   T   T   T
 -2.5577080333173785  1.9689985409379702  1.9054864688179953   T   T   T