Si 
 1.0000000000000000
     6.8883605885204622   -0.0000000000000000    0.0000000000000000
     0.0000000000000000    6.8883605885204622    0.0000000000000000
     0.0000000000000000    0.0000000000000000    6.8883605885204622
 Si 
  16
Selective dynamics
Cartesian
  0.6463464907371577  0.6463464907371577  0.6463464907371577   T   T   T
  2.7978338035230719  6.2420140977833034  4.0905267849973868   T   T   T
  6.2420140977833034  4.0905267849973868  2.7978338035230719   T   T   T
  4.0905267849973868  2.7978338035230719  6.2420140977833034   T   T   T
  4.0905267849973868  4.0905267849973868  4.0905267849973868   T   T   T
  6.2420140977833034  2.7978338035230719  0.6463464907371574   T   T   T
  2.7978338035230719  0.6463464907371577  6.2420140977833034   T   T   T
  0.6463464907371577  6.2420140977833034  2.7978338035230719   T   T   T
  6.2420140977833034  6.2420140977833034  6.2420140977833034   T   T   T
  4.0905267849973868  0.6463464907371574  2.7978338035230719   T   T   T
  0.6463464907371577  2.7978338035230719  4.0905267849973868   T   T   T
  2.7978338035230719  4.0905267849973868  0.6463464907371574   T   T   T
  2.7978338035230719  2.7978338035230719  2.7978338035230719   T   T   T
  0.6463464907371577  4.0905267849973868  6.2420140977833034   T   T   T
  4.0905267849973868  6.2420140977833034  0.6463464907371574   T   T   T
  6.2420140977833034  0.6463464907371577  4.0905267849973868   T   T   T