title: First acid dissociation at an aqueous H2SO4 interface with sum frequency generation spectroscopy.
abstract: The vibrational sum frequency generation (SFG) spectra of the air-liquid interface of H2SO4-H2O solutions over a wide range of concentrations are measured in the SO stretching region (1000-1300 cm(-1)). The analogy of the concentration dependence of Raman and SFG is indicative of a nearly identical behavior of the first acid dissociation at the air-liquid interface as in the bulk.
authors.affiliation: Nanotechnology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1, Higashi, Tsukuba, Ibaraki 305-8565, Japan. t-miyamae@aist.go.jp
authors.forename: Takayuki
authors.initials: T
authors.lastname: Miyamae
authors.forename: Akihiro
authors.initials: A
authors.lastname: Morita
authors.forename: Yukio
authors.initials: Y
authors.lastname: Ouchi