C Si 
 1.0000000000000000
     3.0261355269854300    0.0000000000000000   -0.0000000000000000
    -1.5130677634927150    2.6207102416639914   -0.0000000000000000
    -0.0000000000000000   -0.0000000000000000   14.8249758670130909
 C   Si 
   6   6
Selective dynamics
Cartesian
 -0.0000000000000000 -0.0000000000000000  1.8547527346881463   T   T   T
 -0.0000000000000000 -0.0000000000000000  9.2672406681946953   T   T   T
 -0.0000000000000008  1.7471401611093276 11.7380699795513834   T   T   T
  1.5130677634927152  0.8735700805546638  4.3255820460448424   T   T   T
 -0.0000000000000008  1.7471401611093276  6.7964113569917028   T   T   T
  1.5130677634927152  0.8735700805546638 14.2088992904982447   T   T   T
  0.0000000000000000  0.0000000000000000  0.0016307512148441   T   T   T
 -0.0000000000000000 -0.0000000000000000  7.4141186847213882   T   T   T
 -0.0000000000000008  1.7471401611093276  9.8849479961340165   T   T   T
  1.5130677634927152  0.8735700805546638  2.4724600626274738   T   T   T
 -0.0000000000000008  1.7471401611093276  4.9432893737535464   T   T   T
  1.5130677634927152  0.8735700805546638 12.3557773072600874   T   T   T