O Si 
 1.0000000000000000
     6.8930000000000007   -0.0000000000000003    0.0000000000000000
     0.9430804027212097    5.1688699919810999    0.0000000000000000
    -2.7001823493449990   -1.5102880497994002    6.3221780461261003
 O   Si 
   8   4
Cartesian
  0.5166247183829489  4.5579570792139341  2.2176744588206327
  1.3751204017888177  2.2142802961996115  2.2410758111930278
  1.3313466352768777  3.5939672180468945  4.6078381024875537
  0.5283600857682540  0.8000178959098840  0.1927697394363062
  5.8916184317979621  5.0723986945788946  0.1458325177092306
  3.0051366891491944  1.6463336581206298  0.2530400047545553
  1.0320864514261365  3.3863287917934297  0.0537588518388459
  2.1356615625670323  0.3037439991336797  4.7208065731225624
  7.3761777965082658  4.7984130258772586  0.6123483622943962
  0.9135344631891660  3.3803471374406424  3.1472963065504995
  1.5078057381390733  1.9640252095871160  0.6524133069413747
  1.2828744997807262 -0.6753575713331628  5.5971287298385395