C Si 
 1.0000000000000000
     3.0456010327992922    0.0000000000000000   -0.0000000000000000
    -1.5228005163996461    2.6375678641963112   -0.0000000000000000
    -0.0000000000000000    0.0000000000000000    4.9734456603020059
 C   Si 
   2   2
Selective dynamics
Cartesian
 -0.0000000152280059  1.7583785849227669  2.4892095529843341   T   T   T
  1.5228005011716410  0.8791892968573299  0.0024867228333315   T   T   T
 -0.0000000152280059  1.7583785849227669  4.3542516755912182   T   T   T
  1.5228005011716410  0.8791892968573299  1.8675288454402144   T   T   T