O Si 
 1.0000000000000000
     5.1164208477127664    0.0000000000000000    0.0000000000000000
    -2.5582104238563832    4.4309504305715679    0.0000000000000000
     0.0000000000000000    0.0000000000000000    5.4593469736238278
 O   Si 
   6   3
Selective dynamics
Cartesian
 -0.0000000000000002  1.8810010339101109 -0.0000000000000000   T   T   T
  0.9292157439454324  3.4904499136165130  3.6395646490825508   T   T   T
 -0.9292157439454330  3.4904499136165130  1.8197823245412754   T   T   T
  2.5582104238563832  2.5499493966614573 -0.0000000000000000   T   T   T
  1.6289946799109514  0.9405005169550555  3.6395646490825508   T   T   T
  3.4874261678018161  0.9405005169550555  1.8197823245412754   T   T   T
  2.5582104238563832  0.0000000000000002  2.7296734868119139   T   T   T
 -1.2791052119281916  2.2154752152857848  0.9098911622706369   T   T   T
  1.2791052119281916  2.2154752152857848  4.5494558113531882   T   T   T