Cn1cc(N2C=C[NH+]([O-])C(C(=O)OC(C)(C)C)=C2)cn1	331	Strange valence at N
CC(C)(C)OC(=O)C12CCC3(CCC(c4ccncc4)(CC3)[N+]1=[N-])C2	482	Strange valence at N
O=CC1=C[S](N2CCNCC2)C=N1	333	Strange valence at S
O=CC1=C[S](N2CCNCC2)N=N1	335	Strange valence at S
O=[N+]([O-])C1=C/C(=C2/C=C([N+](=O)[O-])C=C[NH+]2[O-])[NH+]([O-])C=C1	280	Strange valence at N