title: Hydrated-electron resonance enhancement O-H stretching vibration of water hexamer at air-water interface.
abstract: Raman scattering of the O-H stretching vibration mode inside water, as well as near and at the air-water interface, was investigated by laser-induced breakdown (LIB). An intense and characteristic higher wavenumber Raman shift of the O-H vibration was observed at the air-water interface, which was attributed to the hydrated-electron resonance enhancement of the O-H stretching vibration mode of water hexamer. The hydrated electron in the water hexamer structure was formed by excess electrons injected into the gas-like phase with low hydrogen bond order under LIB. The electron-phonon coupled mechanism was discussed.
authors.forename: Zhiwei
authors.initials: Z
authors.lastname: Men
authors.forename: Wenhui
authors.initials: W
authors.lastname: Fang
authors.forename: Zuowei
authors.initials: Z
authors.lastname: Li
authors.forename: Chenglin
authors.initials: C
authors.lastname: Sun
authors.forename: Zhanlong
authors.initials: Z
authors.lastname: Li
authors.forename: Xiaojun
authors.initials: X
authors.lastname: Wang