Si
 1.0000000000000000
     3.8974825725852802    0.0000000000000000    0.0000000000000000
     0.0000000000000000    3.8974825725852802    0.0000000000000000
     0.0000000000000000    0.0000000000000000    3.8974825725852802
 Si 
   4
Cartesian
  0.0000000000000002  1.9487412862926405  1.9487412862926405
  1.9487412862926405 -0.0000000000000006  1.9487412862926405
  1.9487412862926405  1.9487412862926405 -0.0000000000000006
 -0.0000000000000006 -0.0000000000000006 -0.0000000000000006