[Cl+]=C(N1CCCC1)N1CCCC1 256 Strange valence at Cl [O-][NH2+]/C(=N/O)c1ccncc1 450 Strange valence at N [Cl+]=C(N1CCCC1)N1CCCC1 320 Strange valence at Cl [F+]=C(N1CCCC1)N1CCCC1 103 Strange valence at F Cn1ccn(C)c1=[F+] 398 Strange valence at F O=C([NH2+][O-])c1cccnc1 403 Strange valence at N CN(C)C(=[F+])N(C)C 119 Strange valence at F Cn1ccn(C)c1=[Cl+] 256 Strange valence at Cl CN1CCN(C)C1=[Cl+] 238 Strange valence at Cl CN(C)C=[Cl+] 296 Strange valence at Cl CN(C)C(Cl)=[Cl+] 28 Strange valence at Cl