O Si 
 1.0000000000000000
     5.0335999999999999    0.0000000000000000    0.0000000000000000
     0.0000000000000000    5.0335999999999999    0.0000000000000000
     0.0000000000000000    0.0000000000000000    5.0335999999999999
 O   Si 
   8   4
Cartesian
  1.2584000000000000  1.2584000000000000  1.2584000000000000
  3.7751999999999999  3.7751999999999999  1.2584000000000000
  3.7751999999999999  1.2584000000000000  3.7751999999999999
  1.2584000000000000  3.7751999999999999  3.7751999999999999
  1.2584000000000000  1.2584000000000000  3.7751999999999999
  3.7751999999999999  3.7751999999999999  3.7751999999999999
  1.2584000000000000  3.7751999999999999  1.2584000000000000
  3.7751999999999999  1.2584000000000000  1.2584000000000000
  0.0000000000000000  0.0000000000000000  0.0000000000000000
  0.0000000000000000  2.5167999999999999  2.5167999999999999
  2.5167999999999999  0.0000000000000000  2.5167999999999999
  2.5167999999999999  2.5167999999999999  0.0000000000000000