11 12
   -1.9643    2.1420    0.0000 C
   -2.6788    1.7295    0.0000 C
   -2.6788    0.9045    0.0000 C
   -1.9643    0.4919    0.0000 C
   -1.2498    0.9045    0.0000 C
   -1.2498    1.7295    0.0000 C
   -1.9643   -0.3331    0.0000 C
   -2.6788   -0.7456    0.0000 C
   -1.2498   -0.7456    0.0000 C
   -2.5893    2.8777    0.0000 C
   -1.1603    2.6107    0.0000 O
   1    2    1    1
   2    3    1    1
   3    4    1    1
   4    5    1    1
   5    6    1    1
   1    6    1    1
   4    7    1    1
   7    8    1    1
   7    9    2    2
   1   10    1    1
   6   11    1    1
  11    1    1    1