18
 
C          1.56791       -0.07731       -0.38327
N          0.09877        0.08742        0.01778
C          0.00982       -0.06888        1.52362
C          1.21530       -0.95621        1.84972
C          2.31525       -0.37630        0.93038
C         -0.60399        1.27284       -0.54347
H         -0.36297       -0.75229       -0.34774
H         -1.64654        1.24564       -0.21216
H         -0.12217        2.19625       -0.20301
H         -0.57678        1.20815       -1.63562
H          1.57859       -0.93333       -1.06805
H          1.91471        0.82150       -0.90198
H          3.15113       -1.06570        0.76944
H          2.71934        0.55001        1.36176
H          0.97814       -1.98872        1.56189
H          1.47786       -0.92871        2.91291
H         -0.95901       -0.52767        1.74657
H          0.08403        0.92245        1.98927
