Si 
 1.0000000000000000
     6.6201848709142537   -0.0000000000000000   -0.0000000000000000
    -0.0000000000000000    6.6201848709142519   -0.0000000000000000
     0.0000000000000000   -0.0000000000000000    3.8861507583444546
 Si 
   8
Selective dynamics
Cartesian
  5.4227464358820017  5.4227464358819999 -0.0000000000000000   T   T   T
  1.1974384350322484  1.1974384350322482 -0.0000000000000000   T   T   T
  1.1974384350322484  5.4227464358819990 -0.0000000000000000   T   T   T
  5.4227464358820017  1.1974384350322482 -0.0000000000000000   T   T   T
  2.1126540004248757  2.1126540004248748  1.9430753791722264   T   T   T
  4.5075308704893757  4.5075308704893748  1.9430753791722264   T   T   T
  4.5075308704893757  2.1126540004248739  1.9430753791722264   T   T   T
  2.1126540004248757  4.5075308704893748  1.9430753791722264   T   T   T