20
charge = 0
 C 1.256630 -0.821556 0.524637
 N 2.552214 -0.798884 1.168427
 C 2.970576 0.506519 1.652835
 C 2.110434 0.948294 2.824340
 C 4.446159 0.423788 2.048019
 C 5.055461 1.743635 2.381407
 C 5.645824 2.046431 3.529208
 H 1.101839 -1.796514 0.058587
 H 1.130973 -0.046153 -0.250474
 H 0.460373 -0.686791 1.259672
 H 3.250733 -1.145695 0.522959
 H 2.877150 1.270608 0.855618
 H 2.143984 0.194393 3.615546
 H 1.068778 1.090223 2.530943
 H 2.474140 1.894364 3.229543
 H 4.998114 -0.011007 1.202696
 H 4.553038 -0.270255 2.887446
 H 5.003842 2.503527 1.602335
 H 5.719846 1.322945 4.335453
 H 6.079302 3.024418 3.704312