title: Does the influence of substituents impact upon the surface composition of pyrrolidinium-based ionic liquids? An angle resolved XPS study.
abstract: The surface chemistry of a series of four pyrrolidinium based ionic liquids, [C(n)C(1)Pyrr][Tf(2)N] where n = 4-10, is investigated by angle resolved X-ray photoelectron spectroscopy (ARXPS). The importance of sample purity is demonstrated and the stability of the ionic liquids under X-ray irradiation investigated. It is apparent that the surface chemistry and orientation is broadly analogous to that of similar imidazolium-based systems.
authors.affiliation: School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK.
authors.forename: Shuang
authors.initials: S
authors.lastname: Men
authors.forename: Bitu Birru
authors.initials: BB
authors.lastname: Hurisso
authors.forename: Kevin R J
authors.initials: KR
authors.lastname: Lovelock
authors.forename: Peter
authors.initials: P
authors.lastname: Licence