O Si 
 1.0000000000000000
     4.8240162232299539    0.0000000000000000    0.0000000000000000
    -0.0000000000000000    4.8240162232299539    0.0000000000000000
     0.0000000000000000    0.0000000000000000    4.8240162232299539
 O   Si 
   8   4
Selective dynamics
Cartesian
  1.6366901292657903  1.6366901292657903  1.6366901292657903   T   T   T
  0.7753179823491863  3.1873260939641619  4.0486982408807668   T   T   T
  3.1873260939641619  4.0486982408807668  0.7753179823491863   T   T   T
  4.0486982408807668  0.7753179823491863  3.1873260939641623   T   T   T
  3.1873260939641619  3.1873260939641619  3.1873260939641623   T   T   T
  4.0486982408807668  1.6366901292657903  0.7753179823491863   T   T   T
  1.6366901292657903  0.7753179823491863  4.0486982408807668   T   T   T
  0.7753179823491863  4.0486982408807668  1.6366901292657903   T   T   T
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  2.4120081116149765  0.0000000000000000  2.4120081116149765   T   T   T
 -0.0000000000000000  2.4120081116149765  2.4120081116149765   T   T   T
  2.4120081116149765  2.4120081116149765  0.0000000000000000   T   T   T