O Si 
 1.0000000000000000
     5.1504000000000003    0.0000000000000000    0.0000000000000000
     0.0000000000000000    5.1504000000000003    0.0000000000000000
     0.0000000000000000    0.0000000000000000    5.1504000000000003
 O   Si 
   8   4
Cartesian
  1.2876000000000001  1.2876000000000003  1.2876000000000003
  3.8628000000000000  3.8628000000000005  1.2876000000000003
  3.8628000000000000  1.2876000000000003  3.8628000000000005
  1.2876000000000001  3.8628000000000005  3.8628000000000005
  1.2876000000000001  1.2876000000000005  3.8628000000000005
  3.8628000000000000  3.8628000000000009  3.8628000000000005
  1.2876000000000001  3.8628000000000009  1.2876000000000003
  3.8628000000000000  1.2876000000000005  1.2876000000000003
  0.0000000000000000  0.0000000000000004  0.0000000000000004
  0.0000000000000000  2.5752000000000006  2.5752000000000006
  2.5752000000000002  0.0000000000000004  2.5752000000000006
  2.5752000000000002  2.5752000000000006  0.0000000000000004