Si
 1.0000000000000000
     0.0000000000000000    2.6797736971725219    2.6797736971725219
     2.6797736971725219    0.0000000000000000    2.6797736971725219
     2.6797736971725219    2.6797736971725219    0.0000000000000000
 Si 
   2
Direct
  0.0000000000000000  0.0000000000000000 -0.0000000000000000
  0.2500000000000000  0.2500000000000000  0.2500000000000000
