Si 
 1.0000000000000000
     6.5549365353331766   -0.0000000000000000    0.0000000000000000
    -0.0000000000000000    6.5549365353331766    0.0000000000000000
     0.0000000000000000    0.0000000000000000    3.9562921309894814
 Si 
   8
Selective dynamics
Cartesian
  5.3585352644761954  5.3585352644761945  0.0000000000000000   T   T   T
  1.1964012708569802  1.1964012708569807  0.0000000000000000   T   T   T
  1.1964012708569802  5.3585352644761937  0.0000000000000000   T   T   T
  5.3585352644761954  1.1964012708569807  0.0000000000000000   T   T   T
  2.0810669968096063  2.0810669968096067  1.9781460654947405   T   T   T
  4.4738695385235676  4.4738695385235676  1.9781460654947405   T   T   T
  4.4738695385235676  2.0810669968096058  1.9781460654947405   T   T   T
  2.0810669968096063  4.4738695385235676  1.9781460654947405   T   T   T