Si
 1.0000000000000000
     0.0000000000000000    2.7127262066347702    2.7127262066347702
     2.7127262066347702    0.0000000000000000    2.7127262066347702
     2.7127262066347702    2.7127262066347702    0.0000000000000000
 Si 
   2
Cartesian
  0.6781815516586925  0.6781815516586925  0.6781815516586925
  4.7472708616108479  4.7472708616108479  4.7472708616108479