12 11
   -5.5580    1.4732    0.0000 C
   -4.8436    1.8857    0.0000 C
   -4.1291    1.4732    0.0000 C
   -4.8436    2.7107    0.0000 O
   -5.5580    0.6482    0.0000 C
   -4.1291    0.6482    0.0000 C
   -4.8436    0.2357    0.0000 C
   -4.8436   -0.5893    0.0000 C
   -5.5580   -1.0018    0.0000 C
   -4.1291   -1.0018    0.0000 C
   -5.5581    2.2982    0.0000 C
   -4.1291   -1.8268    0.0000 O
   1    2    1    1
   2    3    1    1
   2    4    1    1
   1    5    2    2
   3    6    1    1
   6    7    1    1
   7    8    2    2
   8    9    1    1
   8   10    1    1
   2   11    1    1
  10   12    2    2