Si
 1.0000000000000000
     1.9244934665063900   -3.3333204628234099    0.0000000000000000
     1.9244934665063900    3.3333204628234099    0.0000000000000000
     0.0000000000000000    0.0000000000000000    6.2600132470991197
 Si 
   4
Cartesian
  1.9244934665063904  1.1111068209411594  3.5241304764355572
  1.9244934665063897 -1.1111068209411588  0.3941238528859969
  1.9244934665063897 -1.1111068209411588  2.7358827706635620
  1.9244934665063904  1.1111068209411594  5.8658893942131227