CN(C)C(=[F+])N(C)C 220 Strange valence at F Fn1c(Cl)cccc1=[Cl+] 261 Strange valence at Cl Fn1c(Cl)cccc1=[Cl+] 269 Strange valence at Cl CN(C)C(=[Cl+])N(C)C 169 Strange valence at Cl [Cl+]=C(N1CCCC1)N1CCCC1 427 Strange valence at Cl [Cl+]=C(N1CCCC1)N1CCCC1 430 Strange valence at Cl CN1CCN(C)C1=[F+] 364 Strange valence at F CN1CCN(C)C1=[F+] 368 Strange valence at F CN1CCN(C)C1=[F+] 372 Strange valence at F CN1CCN(C)C1=[F+] 375 Strange valence at F