O Si 
 1.0000000000000000
     4.9854720043551621   -0.0000000000000000    0.0000000000000000
     0.0000000000000000    4.9854720043551621    0.0000000000000000
     0.0000000000000000    0.0000000000000000    4.9854720043551621
 O   Si 
   8   4
Selective dynamics
Cartesian
  1.7389213014406506  1.7389213014406508  1.7389213014406508   T   T   T
  0.7538147007369304  3.2465507029145120  4.2316573036182339   T   T   T
  3.2465507029145120  4.2316573036182339  0.7538147007369304   T   T   T
  4.2316573036182339  0.7538147007369304  3.2465507029145120   T   T   T
  3.2465507029145120  3.2465507029145120  3.2465507029145120   T   T   T
  4.2316573036182339  1.7389213014406508  0.7538147007369304   T   T   T
  1.7389213014406506  0.7538147007369304  4.2316573036182339   T   T   T
  0.7538147007369304  4.2316573036182339  1.7389213014406508   T   T   T
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  2.4927360021775811 -0.0000000000000000  2.4927360021775811   T   T   T
  0.0000000000000000  2.4927360021775811  2.4927360021775811   T   T   T
  2.4927360021775811  2.4927360021775811  0.0000000000000000   T   T   T