Si 
 1.0000000000000000
     6.7300849363343804    0.0000000000000000    0.0000000000000000
     0.0000000000000000    6.7300849363343804    0.0000000000000000
     0.0000000000000000    0.0000000000000000    6.7300849363343804
 Si 
  16
Selective dynamics
Cartesian
  0.6828271633276544  0.6828271633276544  0.6828271633276544   T   T   T
  2.6822153048395352  6.0472577730067236  4.0478696314948435   T   T   T
  6.0472577730067236  4.0478696314948435  2.6822153048395352   T   T   T
  4.0478696314948435  2.6822153048395352  6.0472577730067236   T   T   T
  4.0478696314948435  4.0478696314948435  4.0478696314948435   T   T   T
  6.0472577730067236  2.6822153048395352  0.6828271633276543   T   T   T
  2.6822153048395352  0.6828271633276544  6.0472577730067236   T   T   T
  0.6828271633276544  6.0472577730067236  2.6822153048395352   T   T   T
  6.0472577730067236  6.0472577730067236  6.0472577730067236   T   T   T
  4.0478696314948435  0.6828271633276543  2.6822153048395352   T   T   T
  0.6828271633276544  2.6822153048395352  4.0478696314948435   T   T   T
  2.6822153048395352  4.0478696314948435  0.6828271633276543   T   T   T
  2.6822153048395352  2.6822153048395352  2.6822153048395352   T   T   T
  0.6828271633276544  4.0478696314948435  6.0472577730067236   T   T   T
  4.0478696314948435  6.0472577730067236  0.6828271633276543   T   T   T
  6.0472577730067236  0.6828271633276544  4.0478696314948435   T   T   T