13
charge = 0
 C 1.857555 -0.971323 0.560547
 O 2.718172 0.062117 0.087104
 N 2.937707 0.989018 1.049184
 C 2.543307 2.271687 0.973497
 C 3.041790 2.870866 2.110846
 C 3.713340 1.841471 2.785284
 N 3.647350 0.692936 2.118444
 H 1.753948 -1.658086 -0.277889
 H 0.880946 -0.562325 0.834769
 H 2.308075 -1.482172 1.412637
 H 1.969373 2.634970 0.137596
 H 2.933899 3.902303 2.402806
 H 4.243947 1.881538 3.724274