O Si 
 1.0000000000000000
     7.0512416068363128   -0.1166453253978115   -0.2026830210319412
     1.0872531587366621    5.2199251926083949   -0.1102073897191010
    -3.3099765463778086    1.8800296589530257    5.3452893377876212
 O   Si 
  12   6
Selective dynamics
Cartesian
 -1.5866525873957182  2.6482930954997883  4.6027742858772065   T   T   T
  3.9535049349744802  5.8742125113064407  2.5825330671724465   T   T   T
  1.7877942670541387  2.4121218493566192  1.2224793665050591   T   T   T
 -0.1002970871366071  3.9007490055119938  2.8528680526238457   T   T   T
  2.3310261613307270  4.4963263298772338  4.0641035747934824   T   T   T
 -0.8920884706426242  1.2519548460951961  2.2824578468103223   T   T   T
  4.3981339030378637  3.1960240294785924  2.0860186565521519   T   T   T
  1.2536676069223593  2.1454881442955442  3.8466526377104393   T   T   T
  7.0381087801030286  4.3279037348207003  0.0678018640686310   T   T   T
  3.7449582848131562  1.1519950671414965  0.4645139328319825   T   T   T
  2.2059121282258354  4.8623637309879406  1.3547880160403205   T   T   T
  0.2631710231794797  5.2114553683665923  5.0058895247664870   T   T   T
  3.0608027042880801  3.3981991142400618  1.1901254553391096   T   T   T
 -1.3238824717231481  2.6811965601867214  2.9894385086458413   T   T   T
  2.2184160161546247  0.8601388323920349  0.9898833050150531   T   T   T
  0.9016372610671095  3.7155157805229648  4.3636344340785369   T   T   T
  0.5309444428488963  4.9435548975294772  1.6905753190751769   T   T   T
  3.0927558329729821  5.9452180059520421  3.9483105901335120   T   T   T