Vibrational spectroscopy of water at the vapor/water interface

Journal Article · Mon Apr 12 00:00:00 EDT 1993 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.70.2313· OSTI ID:6649159

Du, Q; Superfine, R; Freysz, E; Shen, Y R ^[1]

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1. Department of Physics, University of California, Berkeley, California 94720 (United States) Chemical Sciences Division, Lawrence Berkeley Laboratory, Berkeley, California 94720 (United States)

Using infrared-visible sum-frequency generation we have obtained the OH stretch vibrational spectra of water at the vapor/water interface. From the spectra, we deduce that more than 20% of the surface water molecules have one free OH projecting into the vapor. The spectrum is weakly temperature dependent from 10 to 80 [degree]C. A monolayer of fatty alcohol on water surface terminates the free OH groups and induces an icelike structure in the spectrum.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6649159
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 70:15; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

664200* -- Spectra of Atoms & Molecules & their Interactions with Photons-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
CHEMICAL BONDS
ENERGY LEVELS
EXCITED STATES
FLUIDS
GASES
HYDROGEN COMPOUNDS
INTERFACES
LASER SPECTROSCOPY
MOLECULAR STRUCTURE
NONLINEAR OPTICS
OPTICS
OXYGEN COMPOUNDS
SPECTROSCOPY
SURFACE PROPERTIES
SURFACTANTS
VAPORS
VIBRATIONAL STATES
WATER