12 12
   -2.5000    1.5170    0.0000 C
   -3.2145    1.1045    0.0000 C
   -3.2145    0.2795    0.0000 C
   -2.5000   -0.1331    0.0000 C
   -1.7855    0.2795    0.0000 C
   -1.7855    1.1045    0.0000 C
   -2.5000    2.3420    0.0000 C
   -2.5000   -0.9581    0.0000 C
   -3.2969   -1.1716    0.0000 C
   -1.7855   -1.3706    0.0000 C
   -1.7031   -0.7445    0.0000 O
   -1.0711    1.5170    0.0000 O
   1    2    1    1
   2    3    1    1
   3    4    1    1
   4    5    1    1
   1    6    1    1
   5    6    1    1
   1    7    1    1
   4    8    1    1
   8    9    1    1
   8   10    1    1
   8   11    1    1
   6   12    1    1