Si 
 1.0000000000000000
     6.6584255575159208    0.0000000000000000   -0.0000000000000000
     0.0000000000000000    6.6584255575159217    0.0000000000000000
     0.0000000000000000    0.0000000000000000    4.0137913784497767
 Si 
   8
Selective dynamics
Cartesian
  5.4520513805877195  5.4520513805877187  0.0000000000000000   T   T   T
  1.2063741769282039  1.2063741769282035  0.0000000000000000   T   T   T
  1.2063741769282039  5.4520513805877178  0.0000000000000000   T   T   T
  5.4520513805877195  1.2063741769282035  0.0000000000000000   T   T   T
  2.1228386018297569  2.1228386018297560  2.0068956892248888   T   T   T
  4.5355869556861670  4.5355869556861652  2.0068956892248888   T   T   T
  4.5355869556861670  2.1228386018297551  2.0068956892248888   T   T   T
  2.1228386018297569  4.5355869556861652  2.0068956892248888   T   T   T