13
charge = 0
 O 2.499679 1.107894 -0.136478
 C 2.086108 -0.016991 -0.273417
 N 2.801810 -1.047050 -0.806304
 C 2.344263 -2.420931 -0.991665
 C 3.596922 -3.071524 -1.624919
 N 4.610820 -2.025451 -1.732900
 C 4.110102 -0.960022 -1.271231
 H 1.067752 -0.324979 0.026169
 H 1.474466 -2.456180 -1.650960
 H 2.073952 -2.873905 -0.035550
 H 3.392106 -3.479173 -2.617597
 H 3.987564 -3.890779 -1.016799
 H 4.615666 -0.004210 -1.212740