Si 
 1.0000000000000000
     4.2358218741926335    0.0000000000000000   -0.0000000000000000
     0.0000000000000000    4.2358218741926335    0.0000000000000001
     0.0000000000000000    0.0000000000000001    4.2358218741926335
 Si 
   4
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  0.0000000000000000  2.1179109370963172  2.1179109370963172   T   T   T
  2.1179109370963172  0.0000000000000000  2.1179109370963172   T   T   T
  2.1179109370963172  2.1179109370963172  0.0000000000000000   T   T   T