7

 O            6.868000    2.890000    0.150000   
 C            7.166000    1.683000    0.347000   
 O            6.478000    0.667000    0.218000   
 C            8.647000    1.490000    0.824000   
 F            8.960000    0.203000    1.057000   
 F            9.521000    1.950000   -0.103000   
 F            8.890000    2.172000    1.968000   
