O Si 
 1.0000000000000000
     6.8793863071742765    0.0000000000000000    0.0000000000000000
     0.0000000000000000    6.5608245319314156    0.0000000000000000
     0.0000000000000000    0.0000000000000000    6.8774117906774732
 O   Si 
  16   8
Selective dynamics
Cartesian
  3.7770468109456536  4.6026493498540804  3.9267380465258088   T   T   T
  6.5420326498157566  1.9581751820773472  0.4880321511870689   T   T   T
  3.1023394962286241  1.3222370838883644  6.3893796394904108   T   T   T
  0.3373536573585190  5.2385874480430479  2.9506737441516679   T   T   T
  1.3279737883883482  0.2834894263163267  4.7748498343068402   T   T   T
  2.1117193651987893  6.2773351056151014  1.3361439389680978   T   T   T
  5.5514125187859360  3.5639016922820339  5.5412678517093754   T   T   T
  4.7676669419754845  2.9969228396493857  2.1025619563706366   T   T   T
  4.6194510344850404  0.4274436387496081  1.4015260452373266   T   T   T
  5.6996284262763703  6.1333808931818119  4.8402319405760643   T   T   T
  2.2599352726892388  3.7078559047153208  2.0371798501014116   T   T   T
  1.1797578808978992  2.8529686272161023  5.4758857454401522   T   T   T
  0.3573530596673226  4.5336672553802702  0.4431441458719815   T   T   T
  3.0823400939198149  2.0271572765511561  3.8818500412107215   T   T   T
  6.5220332475069558  1.2532549894145566  2.9955617494667539   T   T   T
  3.7970462132544660  5.3075695425168652  6.4342676448054936   T   T   T
  6.8339731813319959  3.2403857165699166  6.4480943368060757   T   T   T
  3.4851062794294188  3.3204388153615003  3.0093884414673355   T   T   T
  0.0454131258422768  6.5207979825356226  3.8680233492101399   T   T   T
  3.3942800277448582  0.0400265493957933  0.4293174538713984   T   T   T
  1.2892831930755035  4.9477823552780009  1.6919820456692707   T   T   T
  2.1504099605116345  1.6130421766534160  5.1306879410080137   T   T   T
  5.5901031140987758  1.6673700893122925  1.7467238496694666   T   T   T
  4.7289763466626376  4.8934544426191264  5.1854297450082045   T   T   T