Si 
 1.0000000000000000
     6.6976672691167343   -0.0000000000000000    0.0000000000000000
    -0.0000000000000000    6.6976672691167343    0.0000000000000000
     0.0000000000000000    0.0000000000000000    6.6976672691167343
 Si 
  16
Selective dynamics
Cartesian
  0.6806799170428439  0.6806799170428439  0.6806799170428439   T   T   T
  2.6681537175155232  6.0169873520738903  4.0295135516012088   T   T   T
  6.0169873520738903  4.0295135516012088  2.6681537175155228   T   T   T
  4.0295135516012088  2.6681537175155228  6.0169873520738903   T   T   T
  4.0295135516012088  4.0295135516012088  4.0295135516012088   T   T   T
  6.0169873520738903  2.6681537175155228  0.6806799170428438   T   T   T
  2.6681537175155232  0.6806799170428439  6.0169873520738903   T   T   T
  0.6806799170428439  6.0169873520738903  2.6681537175155228   T   T   T
  6.0169873520738903  6.0169873520738903  6.0169873520738903   T   T   T
  4.0295135516012088  0.6806799170428438  2.6681537175155228   T   T   T
  0.6806799170428439  2.6681537175155228  4.0295135516012088   T   T   T
  2.6681537175155232  4.0295135516012088  0.6806799170428438   T   T   T
  2.6681537175155232  2.6681537175155228  2.6681537175155228   T   T   T
  0.6806799170428439  4.0295135516012088  6.0169873520738903   T   T   T
  4.0295135516012088  6.0169873520738903  0.6806799170428438   T   T   T
  6.0169873520738903  0.6806799170428439  4.0295135516012088   T   T   T