O Si 
 1.0000000000000000
     4.8219308338607698   -0.0302037108516406    0.0851505266710824
    -1.2861616446588688    4.5942123708469520    0.0577839525301927
    -0.2503989256614447   -0.0618322889561698    6.0644890037078545
 O   Si 
   8   4
Selective dynamics
Cartesian
  3.0394863907671481  3.4526609023376529  2.3727560991783143   T   T   T
  0.5940612045548858  2.5477848121578446  2.5124569134797130   T   T   T
  0.0259930748634534  4.4666008814442515  4.0327798589125861   T   T   T
  4.4065853583557875  0.9496025025127298  1.1898345805490735   T   T   T
  1.9913303316428328  4.1359648649057146  5.6555889569264268   T   T   T
  1.8324143580327867  1.5639266073142040  0.0328839420088796   T   T   T
 -0.2026804891509534  3.3908806126408226  0.3365452173497430   T   T   T
  3.4077898603863570  1.8035687869665651  4.2271069058650408   T   T   T
  3.2177277402486957  3.9926871854614721  0.8690664076836019   T   T   T
 -0.6671130901224356  3.1057657127017642  3.3880226095825936   T   T   T
  0.6363572433456336  2.1660211559008919  0.9314982897956887   T   T   T
  2.3766647944644248  0.7101294830925938  4.9223792370598360   T   T   T