[F+]=C(N1CCCC1)N1CCCC1	81	Strange valence at F
CN1CCN(C)C1=[Cl+]	85	Strange valence at Cl
CN(C)C(=[Cl+])N(C)C	392	Strange valence at Cl
CN(C)C(=[F+])N(C)C	402	Strange valence at F