11
 
C     0.7885871   -0.4548853    0.0000000 
C     2.0276159    0.1170956    0.0000000 
C    -0.3469312    0.3595514    0.0000000 
C    -1.7192864   -0.1105052    0.0000000 
H     0.6769558   -1.5335331    0.0000000 
H     2.1558090    1.1952867    0.0000000 
H     2.9298121   -0.4853945    0.0000000 
H    -0.1913884    1.4380600    0.0000000 
H    -1.8276302   -1.1921859    0.0000000 
H    -2.2467719    0.3332551    0.8604140 
H    -2.2467719    0.3332551   -0.8604140 
