title: Generation and aromaticity of 2-silaimidazolium ion, a new pi-conjugated silylium ion.
abstract: A novel cationic silaaromatic, 2-silaimidazolium cation (5), was synthesized by chloride abstraction from the corresponding chlorosilane (4) with [Et3Si(benzene)]+.TPFPB- (TPFPB- = tetrakis(pentafluorophenyl)borate); cation exists as a free silylium cation in solution due to bulky substituents on the five-membered ring.
authors.affiliation: Institute for Chemical Research, Kyoto University, Uji, Kyoto, 611-0011, Japan.
authors.forename: Shintaro
authors.initials: S
authors.lastname: Ishida
authors.forename: Tohru
authors.initials: T
authors.lastname: Nishinaga
authors.forename: Robert
authors.initials: R
authors.lastname: West
authors.forename: Koichi
authors.initials: K
authors.lastname: Komatsu