CC(C)c1cccc(C(C)C)c1-n1ccn(-c2c(C(C)C)cccc2C(C)C)c1=[F+] 212 Strange valence at F CC(C)c1cccc(C(C)C)c1-n1ccn(-c2c(C(C)C)cccc2C(C)C)c1=[F+] 212 Strange valence at F